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Finding the Fourth Proportional to 3,145.76, 4,341.03 and 1,748.60

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Solution

The fourth proportional to 3,145.76, 4,341.03 and 1,748.60 is: 2,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.76 : 4,341.03 = 1,748.60 : x
  2. Step 2: Convert to fraction form
    3,145.76/4,341.03 = 1,748.60/x
  3. Step 3: Cross multiply
    3,145.76x = 4,341.03 × 1,748.60
  4. Step 4: Simplify right side
    3,145.76x = 7,590,725.06
  5. Step 5: Solve for x
    x = 7,590,725.06/3,145.76
  6. Step 6: Final answer
    x = 2,413.00

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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.