Home / 3,139.38-4,332.26-1,723.10

Finding the Fourth Proportional to 3,139.38, 4,332.26 and 1,723.10

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Solution

The fourth proportional to 3,139.38, 4,332.26 and 1,723.10 is: 2,377.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.38 : 4,332.26 = 1,723.10 : x
  2. Step 2: Convert to fraction form
    3,139.38/4,332.26 = 1,723.10/x
  3. Step 3: Cross multiply
    3,139.38x = 4,332.26 × 1,723.10
  4. Step 4: Simplify right side
    3,139.38x = 7,464,886.93
  5. Step 5: Solve for x
    x = 7,464,886.93/3,139.38
  6. Step 6: Final answer
    x = 2,377.82

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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.