Home / 1,545.20-2,132.36-837.02

Finding the Fourth Proportional to 1,545.20, 2,132.36 and 837.02

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Solution

The fourth proportional to 1,545.20, 2,132.36 and 837.02 is: 1,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.20 : 2,132.36 = 837.02 : x
  2. Step 2: Convert to fraction form
    1,545.20/2,132.36 = 837.02/x
  3. Step 3: Cross multiply
    1,545.20x = 2,132.36 × 837.02
  4. Step 4: Simplify right side
    1,545.20x = 1,784,827.97
  5. Step 5: Solve for x
    x = 1,784,827.97/1,545.20
  6. Step 6: Final answer
    x = 1,155.08

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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.