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Finding the Fourth Proportional to 1,053.90, 1,581.26 and 566.28

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Solution

The fourth proportional to 1,053.90, 1,581.26 and 566.28 is: 849.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.90 : 1,581.26 = 566.28 : x
  2. Step 2: Convert to fraction form
    1,053.90/1,581.26 = 566.28/x
  3. Step 3: Cross multiply
    1,053.90x = 1,581.26 × 566.28
  4. Step 4: Simplify right side
    1,053.90x = 895,433.08
  5. Step 5: Solve for x
    x = 895,433.08/1,053.90
  6. Step 6: Final answer
    x = 849.64

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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.