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Finding the Fourth Proportional to 3,074.76, 4,243.18 and 1,748.90

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Solution

The fourth proportional to 3,074.76, 4,243.18 and 1,748.90 is: 2,413.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.76 : 4,243.18 = 1,748.90 : x
  2. Step 2: Convert to fraction form
    3,074.76/4,243.18 = 1,748.90/x
  3. Step 3: Cross multiply
    3,074.76x = 4,243.18 × 1,748.90
  4. Step 4: Simplify right side
    3,074.76x = 7,420,897.50
  5. Step 5: Solve for x
    x = 7,420,897.50/3,074.76
  6. Step 6: Final answer
    x = 2,413.49

Related Problems

Find fourth proportional to 1,537.38, 2,121.59 and 874.45
Half scale
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Double scale
Find fourth proportional to 3,075.76, 4,244.56 and 1,749.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.