Home / 3,642.28-5,028.42-2,403.88

Finding the Fourth Proportional to 3,642.28, 5,028.42 and 2,403.88

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Solution

The fourth proportional to 3,642.28, 5,028.42 and 2,403.88 is: 3,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.28 : 5,028.42 = 2,403.88 : x
  2. Step 2: Convert to fraction form
    3,642.28/5,028.42 = 2,403.88/x
  3. Step 3: Cross multiply
    3,642.28x = 5,028.42 × 2,403.88
  4. Step 4: Simplify right side
    3,642.28x = 12,087,718.27
  5. Step 5: Solve for x
    x = 12,087,718.27/3,642.28
  6. Step 6: Final answer
    x = 3,318.72

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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.