Home / 3,743.92-5,616.49-1,278.69

Finding the Fourth Proportional to 3,743.92, 5,616.49 and 1,278.69

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Solution

The fourth proportional to 3,743.92, 5,616.49 and 1,278.69 is: 1,918.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.92 : 5,616.49 = 1,278.69 : x
  2. Step 2: Convert to fraction form
    3,743.92/5,616.49 = 1,278.69/x
  3. Step 3: Cross multiply
    3,743.92x = 5,616.49 × 1,278.69
  4. Step 4: Simplify right side
    3,743.92x = 7,181,727.74
  5. Step 5: Solve for x
    x = 7,181,727.74/3,743.92
  6. Step 6: Final answer
    x = 1,918.24

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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.