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Finding the Fourth Proportional to 1,545.80, 2,314.10 and 996.36

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Solution

The fourth proportional to 1,545.80, 2,314.10 and 996.36 is: 1,491.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.80 : 2,314.10 = 996.36 : x
  2. Step 2: Convert to fraction form
    1,545.80/2,314.10 = 996.36/x
  3. Step 3: Cross multiply
    1,545.80x = 2,314.10 × 996.36
  4. Step 4: Simplify right side
    1,545.80x = 2,305,676.68
  5. Step 5: Solve for x
    x = 2,305,676.68/1,545.80
  6. Step 6: Final answer
    x = 1,491.58

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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.