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Finding the Fourth Proportional to 1,534.62, 2,299.91 and 559.79

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Solution

The fourth proportional to 1,534.62, 2,299.91 and 559.79 is: 838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.62 : 2,299.91 = 559.79 : x
  2. Step 2: Convert to fraction form
    1,534.62/2,299.91 = 559.79/x
  3. Step 3: Cross multiply
    1,534.62x = 2,299.91 × 559.79
  4. Step 4: Simplify right side
    1,534.62x = 1,287,452.32
  5. Step 5: Solve for x
    x = 1,287,452.32/1,534.62
  6. Step 6: Final answer
    x = 838.94

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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.