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Finding the Fourth Proportional to 1,545.62, 2,132.91 and 846.99

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Solution

The fourth proportional to 1,545.62, 2,132.91 and 846.99 is: 1,168.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.62 : 2,132.91 = 846.99 : x
  2. Step 2: Convert to fraction form
    1,545.62/2,132.91 = 846.99/x
  3. Step 3: Cross multiply
    1,545.62x = 2,132.91 × 846.99
  4. Step 4: Simplify right side
    1,545.62x = 1,806,553.44
  5. Step 5: Solve for x
    x = 1,806,553.44/1,545.62
  6. Step 6: Final answer
    x = 1,168.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.