Home / 1,057.20-1,458.69-614.85

Finding the Fourth Proportional to 1,057.20, 1,458.69 and 614.85

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Solution

The fourth proportional to 1,057.20, 1,458.69 and 614.85 is: 848.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.20 : 1,458.69 = 614.85 : x
  2. Step 2: Convert to fraction form
    1,057.20/1,458.69 = 614.85/x
  3. Step 3: Cross multiply
    1,057.20x = 1,458.69 × 614.85
  4. Step 4: Simplify right side
    1,057.20x = 896,875.55
  5. Step 5: Solve for x
    x = 896,875.55/1,057.20
  6. Step 6: Final answer
    x = 848.35

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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.