Home / 3,979.53-5,494.20-2,565.66

Finding the Fourth Proportional to 3,979.53, 5,494.20 and 2,565.66

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Solution

The fourth proportional to 3,979.53, 5,494.20 and 2,565.66 is: 3,542.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.53 : 5,494.20 = 2,565.66 : x
  2. Step 2: Convert to fraction form
    3,979.53/5,494.20 = 2,565.66/x
  3. Step 3: Cross multiply
    3,979.53x = 5,494.20 × 2,565.66
  4. Step 4: Simplify right side
    3,979.53x = 14,096,249.17
  5. Step 5: Solve for x
    x = 14,096,249.17/3,979.53
  6. Step 6: Final answer
    x = 3,542.19

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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.