Home / 1,057.46-1,459.30-615.62

Finding the Fourth Proportional to 1,057.46, 1,459.30 and 615.62

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Solution

The fourth proportional to 1,057.46, 1,459.30 and 615.62 is: 849.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.46 : 1,459.30 = 615.62 : x
  2. Step 2: Convert to fraction form
    1,057.46/1,459.30 = 615.62/x
  3. Step 3: Cross multiply
    1,057.46x = 1,459.30 × 615.62
  4. Step 4: Simplify right side
    1,057.46x = 898,366.97
  5. Step 5: Solve for x
    x = 898,366.97/1,057.46
  6. Step 6: Final answer
    x = 849.56

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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.