Home / 7,209.30-9,948.90-4,022.88

Finding the Fourth Proportional to 7,209.30, 9,948.90 and 4,022.88

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Solution

The fourth proportional to 7,209.30, 9,948.90 and 4,022.88 is: 5,551.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.30 : 9,948.90 = 4,022.88 : x
  2. Step 2: Convert to fraction form
    7,209.30/9,948.90 = 4,022.88/x
  3. Step 3: Cross multiply
    7,209.30x = 9,948.90 × 4,022.88
  4. Step 4: Simplify right side
    7,209.30x = 40,023,230.83
  5. Step 5: Solve for x
    x = 40,023,230.83/7,209.30
  6. Step 6: Final answer
    x = 5,551.61

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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.