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Finding the Fourth Proportional to 1,156.89, 1,737.24 and 1,098.43

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Solution

The fourth proportional to 1,156.89, 1,737.24 and 1,098.43 is: 1,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.89 : 1,737.24 = 1,098.43 : x
  2. Step 2: Convert to fraction form
    1,156.89/1,737.24 = 1,098.43/x
  3. Step 3: Cross multiply
    1,156.89x = 1,737.24 × 1,098.43
  4. Step 4: Simplify right side
    1,156.89x = 1,908,236.53
  5. Step 5: Solve for x
    x = 1,908,236.53/1,156.89
  6. Step 6: Final answer
    x = 1,649.45

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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.