Home / 1,545.41-2,132.66-846.78

Finding the Fourth Proportional to 1,545.41, 2,132.66 and 846.78

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Solution

The fourth proportional to 1,545.41, 2,132.66 and 846.78 is: 1,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.41 : 2,132.66 = 846.78 : x
  2. Step 2: Convert to fraction form
    1,545.41/2,132.66 = 846.78/x
  3. Step 3: Cross multiply
    1,545.41x = 2,132.66 × 846.78
  4. Step 4: Simplify right side
    1,545.41x = 1,805,899.17
  5. Step 5: Solve for x
    x = 1,805,899.17/1,545.41
  6. Step 6: Final answer
    x = 1,168.56

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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.