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Finding the Fourth Proportional to 1,034.38, 1,427.45 and 562.28

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Solution

The fourth proportional to 1,034.38, 1,427.45 and 562.28 is: 775.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.38 : 1,427.45 = 562.28 : x
  2. Step 2: Convert to fraction form
    1,034.38/1,427.45 = 562.28/x
  3. Step 3: Cross multiply
    1,034.38x = 1,427.45 × 562.28
  4. Step 4: Simplify right side
    1,034.38x = 802,616.64
  5. Step 5: Solve for x
    x = 802,616.64/1,034.38
  6. Step 6: Final answer
    x = 775.94

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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.