Home / 1,545.43-2,132.66-846.80

Finding the Fourth Proportional to 1,545.43, 2,132.66 and 846.80

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Solution

The fourth proportional to 1,545.43, 2,132.66 and 846.80 is: 1,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.43 : 2,132.66 = 846.80 : x
  2. Step 2: Convert to fraction form
    1,545.43/2,132.66 = 846.80/x
  3. Step 3: Cross multiply
    1,545.43x = 2,132.66 × 846.80
  4. Step 4: Simplify right side
    1,545.43x = 1,805,936.49
  5. Step 5: Solve for x
    x = 1,805,936.49/1,545.43
  6. Step 6: Final answer
    x = 1,168.57

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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.