Home / 3,948.40-5,923.32-2,280.88

Finding the Fourth Proportional to 3,948.40, 5,923.32 and 2,280.88

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Solution

The fourth proportional to 3,948.40, 5,923.32 and 2,280.88 is: 3,421.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.40 : 5,923.32 = 2,280.88 : x
  2. Step 2: Convert to fraction form
    3,948.40/5,923.32 = 2,280.88/x
  3. Step 3: Cross multiply
    3,948.40x = 5,923.32 × 2,280.88
  4. Step 4: Simplify right side
    3,948.40x = 13,510,382.12
  5. Step 5: Solve for x
    x = 13,510,382.12/3,948.40
  6. Step 6: Final answer
    x = 3,421.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.