Home / 3,957.27-5,457.42-3,397.56

Finding the Fourth Proportional to 3,957.27, 5,457.42 and 3,397.56

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Solution

The fourth proportional to 3,957.27, 5,457.42 and 3,397.56 is: 4,685.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.27 : 5,457.42 = 3,397.56 : x
  2. Step 2: Convert to fraction form
    3,957.27/5,457.42 = 3,397.56/x
  3. Step 3: Cross multiply
    3,957.27x = 5,457.42 × 3,397.56
  4. Step 4: Simplify right side
    3,957.27x = 18,541,911.90
  5. Step 5: Solve for x
    x = 18,541,911.90/3,957.27
  6. Step 6: Final answer
    x = 4,685.53

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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.