Home / 1,545.96-2,316.22-1,287.61

Finding the Fourth Proportional to 1,545.96, 2,316.22 and 1,287.61

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Solution

The fourth proportional to 1,545.96, 2,316.22 and 1,287.61 is: 1,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.96 : 2,316.22 = 1,287.61 : x
  2. Step 2: Convert to fraction form
    1,545.96/2,316.22 = 1,287.61/x
  3. Step 3: Cross multiply
    1,545.96x = 2,316.22 × 1,287.61
  4. Step 4: Simplify right side
    1,545.96x = 2,982,387.71
  5. Step 5: Solve for x
    x = 2,982,387.71/1,545.96
  6. Step 6: Final answer
    x = 1,929.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.