Home / 7,590.40-11,387.60-2,660.04

Finding the Fourth Proportional to 7,590.40, 11,387.60 and 2,660.04

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Solution

The fourth proportional to 7,590.40, 11,387.60 and 2,660.04 is: 3,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,590.40 : 11,387.60 = 2,660.04 : x
  2. Step 2: Convert to fraction form
    7,590.40/11,387.60 = 2,660.04/x
  3. Step 3: Cross multiply
    7,590.40x = 11,387.60 × 2,660.04
  4. Step 4: Simplify right side
    7,590.40x = 30,291,471.50
  5. Step 5: Solve for x
    x = 30,291,471.50/7,590.40
  6. Step 6: Final answer
    x = 3,990.76

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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.