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Finding the Fourth Proportional to 1,493.82, 2,239.27 and 569.11

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Solution

The fourth proportional to 1,493.82, 2,239.27 and 569.11 is: 853.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.82 : 2,239.27 = 569.11 : x
  2. Step 2: Convert to fraction form
    1,493.82/2,239.27 = 569.11/x
  3. Step 3: Cross multiply
    1,493.82x = 2,239.27 × 569.11
  4. Step 4: Simplify right side
    1,493.82x = 1,274,390.95
  5. Step 5: Solve for x
    x = 1,274,390.95/1,493.82
  6. Step 6: Final answer
    x = 853.11

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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.