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Finding the Fourth Proportional to 3,607.52, 5,411.94 and 1,108.66

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Solution

The fourth proportional to 3,607.52, 5,411.94 and 1,108.66 is: 1,663.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.52 : 5,411.94 = 1,108.66 : x
  2. Step 2: Convert to fraction form
    3,607.52/5,411.94 = 1,108.66/x
  3. Step 3: Cross multiply
    3,607.52x = 5,411.94 × 1,108.66
  4. Step 4: Simplify right side
    3,607.52x = 5,999,974.34
  5. Step 5: Solve for x
    x = 5,999,974.34/3,607.52
  6. Step 6: Final answer
    x = 1,663.19

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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.