Home / 3,934.93-5,426.23-2,872.87

Finding the Fourth Proportional to 3,934.93, 5,426.23 and 2,872.87

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Solution

The fourth proportional to 3,934.93, 5,426.23 and 2,872.87 is: 3,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.93 : 5,426.23 = 2,872.87 : x
  2. Step 2: Convert to fraction form
    3,934.93/5,426.23 = 2,872.87/x
  3. Step 3: Cross multiply
    3,934.93x = 5,426.23 × 2,872.87
  4. Step 4: Simplify right side
    3,934.93x = 15,588,853.38
  5. Step 5: Solve for x
    x = 15,588,853.38/3,934.93
  6. Step 6: Final answer
    x = 3,961.66

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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.