Home / 3,822.96-5,278.30-2,565.90

Finding the Fourth Proportional to 3,822.96, 5,278.30 and 2,565.90

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Solution

The fourth proportional to 3,822.96, 5,278.30 and 2,565.90 is: 3,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.96 : 5,278.30 = 2,565.90 : x
  2. Step 2: Convert to fraction form
    3,822.96/5,278.30 = 2,565.90/x
  3. Step 3: Cross multiply
    3,822.96x = 5,278.30 × 2,565.90
  4. Step 4: Simplify right side
    3,822.96x = 13,543,589.97
  5. Step 5: Solve for x
    x = 13,543,589.97/3,822.96
  6. Step 6: Final answer
    x = 3,542.70

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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.