Home / 3,934.05-5,426.14-2,672.90

Finding the Fourth Proportional to 3,934.05, 5,426.14 and 2,672.90

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Solution

The fourth proportional to 3,934.05, 5,426.14 and 2,672.90 is: 3,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.05 : 5,426.14 = 2,672.90 : x
  2. Step 2: Convert to fraction form
    3,934.05/5,426.14 = 2,672.90/x
  3. Step 3: Cross multiply
    3,934.05x = 5,426.14 × 2,672.90
  4. Step 4: Simplify right side
    3,934.05x = 14,503,516.24
  5. Step 5: Solve for x
    x = 14,503,516.24/3,934.05
  6. Step 6: Final answer
    x = 3,686.66

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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.