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Finding the Fourth Proportional to 1,545.44, 2,132.71 and 846.81

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Solution

The fourth proportional to 1,545.44, 2,132.71 and 846.81 is: 1,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.44 : 2,132.71 = 846.81 : x
  2. Step 2: Convert to fraction form
    1,545.44/2,132.71 = 846.81/x
  3. Step 3: Cross multiply
    1,545.44x = 2,132.71 × 846.81
  4. Step 4: Simplify right side
    1,545.44x = 1,806,000.16
  5. Step 5: Solve for x
    x = 1,806,000.16/1,545.44
  6. Step 6: Final answer
    x = 1,168.60

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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.