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Finding the Fourth Proportional to 1,049.12, 1,573.82 and 355.98

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Solution

The fourth proportional to 1,049.12, 1,573.82 and 355.98 is: 534.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.12 : 1,573.82 = 355.98 : x
  2. Step 2: Convert to fraction form
    1,049.12/1,573.82 = 355.98/x
  3. Step 3: Cross multiply
    1,049.12x = 1,573.82 × 355.98
  4. Step 4: Simplify right side
    1,049.12x = 560,248.44
  5. Step 5: Solve for x
    x = 560,248.44/1,049.12
  6. Step 6: Final answer
    x = 534.02

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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.