Home / 1,388.28-2,082.66-566.52

Finding the Fourth Proportional to 1,388.28, 2,082.66 and 566.52

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Solution

The fourth proportional to 1,388.28, 2,082.66 and 566.52 is: 849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388.28 : 2,082.66 = 566.52 : x
  2. Step 2: Convert to fraction form
    1,388.28/2,082.66 = 566.52/x
  3. Step 3: Cross multiply
    1,388.28x = 2,082.66 × 566.52
  4. Step 4: Simplify right side
    1,388.28x = 1,179,868.54
  5. Step 5: Solve for x
    x = 1,179,868.54/1,388.28
  6. Step 6: Final answer
    x = 849.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.