Home / 3,948.96-5,919.12-2,488.80

Finding the Fourth Proportional to 3,948.96, 5,919.12 and 2,488.80

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Solution

The fourth proportional to 3,948.96, 5,919.12 and 2,488.80 is: 3,730.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.96 : 5,919.12 = 2,488.80 : x
  2. Step 2: Convert to fraction form
    3,948.96/5,919.12 = 2,488.80/x
  3. Step 3: Cross multiply
    3,948.96x = 5,919.12 × 2,488.80
  4. Step 4: Simplify right side
    3,948.96x = 14,731,505.86
  5. Step 5: Solve for x
    x = 14,731,505.86/3,948.96
  6. Step 6: Final answer
    x = 3,730.48

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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.