Home / 6,875.10-9,487.60-3,731.28

Finding the Fourth Proportional to 6,875.10, 9,487.60 and 3,731.28

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Solution

The fourth proportional to 6,875.10, 9,487.60 and 3,731.28 is: 5,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.10 : 9,487.60 = 3,731.28 : x
  2. Step 2: Convert to fraction form
    6,875.10/9,487.60 = 3,731.28/x
  3. Step 3: Cross multiply
    6,875.10x = 9,487.60 × 3,731.28
  4. Step 4: Simplify right side
    6,875.10x = 35,400,892.13
  5. Step 5: Solve for x
    x = 35,400,892.13/6,875.10
  6. Step 6: Final answer
    x = 5,149.15

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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.