Home / 5,581.17-7,700.46-3,988.30

Finding the Fourth Proportional to 5,581.17, 7,700.46 and 3,988.30

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Solution

The fourth proportional to 5,581.17, 7,700.46 and 3,988.30 is: 5,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.17 : 7,700.46 = 3,988.30 : x
  2. Step 2: Convert to fraction form
    5,581.17/7,700.46 = 3,988.30/x
  3. Step 3: Cross multiply
    5,581.17x = 7,700.46 × 3,988.30
  4. Step 4: Simplify right side
    5,581.17x = 30,711,744.62
  5. Step 5: Solve for x
    x = 30,711,744.62/5,581.17
  6. Step 6: Final answer
    x = 5,502.74

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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.