Home / 3,187.38-4,399.15-2,383.87

Finding the Fourth Proportional to 3,187.38, 4,399.15 and 2,383.87

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Solution

The fourth proportional to 3,187.38, 4,399.15 and 2,383.87 is: 3,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.38 : 4,399.15 = 2,383.87 : x
  2. Step 2: Convert to fraction form
    3,187.38/4,399.15 = 2,383.87/x
  3. Step 3: Cross multiply
    3,187.38x = 4,399.15 × 2,383.87
  4. Step 4: Simplify right side
    3,187.38x = 10,487,001.71
  5. Step 5: Solve for x
    x = 10,487,001.71/3,187.38
  6. Step 6: Final answer
    x = 3,290.16

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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.