Home / 3,717.47-5,127.42-3,157.05

Finding the Fourth Proportional to 3,717.47, 5,127.42 and 3,157.05

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Solution

The fourth proportional to 3,717.47, 5,127.42 and 3,157.05 is: 4,354.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.47 : 5,127.42 = 3,157.05 : x
  2. Step 2: Convert to fraction form
    3,717.47/5,127.42 = 3,157.05/x
  3. Step 3: Cross multiply
    3,717.47x = 5,127.42 × 3,157.05
  4. Step 4: Simplify right side
    3,717.47x = 16,187,557.18
  5. Step 5: Solve for x
    x = 16,187,557.18/3,717.47
  6. Step 6: Final answer
    x = 4,354.45

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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.