Home / 3,713.67-5,127.30-2,872.89

Finding the Fourth Proportional to 3,713.67, 5,127.30 and 2,872.89

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Solution

The fourth proportional to 3,713.67, 5,127.30 and 2,872.89 is: 3,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.67 : 5,127.30 = 2,872.89 : x
  2. Step 2: Convert to fraction form
    3,713.67/5,127.30 = 2,872.89/x
  3. Step 3: Cross multiply
    3,713.67x = 5,127.30 × 2,872.89
  4. Step 4: Simplify right side
    3,713.67x = 14,730,168.90
  5. Step 5: Solve for x
    x = 14,730,168.90/3,713.67
  6. Step 6: Final answer
    x = 3,966.47

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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.