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Finding the Fourth Proportional to 1,581.64, 2,372.46 and 801.52

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Solution

The fourth proportional to 1,581.64, 2,372.46 and 801.52 is: 1,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.64 : 2,372.46 = 801.52 : x
  2. Step 2: Convert to fraction form
    1,581.64/2,372.46 = 801.52/x
  3. Step 3: Cross multiply
    1,581.64x = 2,372.46 × 801.52
  4. Step 4: Simplify right side
    1,581.64x = 1,901,574.14
  5. Step 5: Solve for x
    x = 1,901,574.14/1,581.64
  6. Step 6: Final answer
    x = 1,202.28

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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.