Home / 1,545.82-2,316.03-1,287.49

Finding the Fourth Proportional to 1,545.82, 2,316.03 and 1,287.49

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Solution

The fourth proportional to 1,545.82, 2,316.03 and 1,287.49 is: 1,928.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.82 : 2,316.03 = 1,287.49 : x
  2. Step 2: Convert to fraction form
    1,545.82/2,316.03 = 1,287.49/x
  3. Step 3: Cross multiply
    1,545.82x = 2,316.03 × 1,287.49
  4. Step 4: Simplify right side
    1,545.82x = 2,981,853.88
  5. Step 5: Solve for x
    x = 2,981,853.88/1,545.82
  6. Step 6: Final answer
    x = 1,928.98

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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.