Home / 3,220.75-4,444.64-1,748.75

Finding the Fourth Proportional to 3,220.75, 4,444.64 and 1,748.75

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Solution

The fourth proportional to 3,220.75, 4,444.64 and 1,748.75 is: 2,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.75 : 4,444.64 = 1,748.75 : x
  2. Step 2: Convert to fraction form
    3,220.75/4,444.64 = 1,748.75/x
  3. Step 3: Cross multiply
    3,220.75x = 4,444.64 × 1,748.75
  4. Step 4: Simplify right side
    3,220.75x = 7,772,564.20
  5. Step 5: Solve for x
    x = 7,772,564.20/3,220.75
  6. Step 6: Final answer
    x = 2,413.28

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Half scale
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Double scale
Find fourth proportional to 3,221.75, 4,446.02 and 1,749.75
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.