Home / 7,470.88-11,205.24-2,540.68

Finding the Fourth Proportional to 7,470.88, 11,205.24 and 2,540.68

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Solution

The fourth proportional to 7,470.88, 11,205.24 and 2,540.68 is: 3,810.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.88 : 11,205.24 = 2,540.68 : x
  2. Step 2: Convert to fraction form
    7,470.88/11,205.24 = 2,540.68/x
  3. Step 3: Cross multiply
    7,470.88x = 11,205.24 × 2,540.68
  4. Step 4: Simplify right side
    7,470.88x = 28,468,929.16
  5. Step 5: Solve for x
    x = 28,468,929.16/7,470.88
  6. Step 6: Final answer
    x = 3,810.65

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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.