Home / 7,442.35-11,159.84-3,689.79

Finding the Fourth Proportional to 7,442.35, 11,159.84 and 3,689.79

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Solution

The fourth proportional to 7,442.35, 11,159.84 and 3,689.79 is: 5,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.35 : 11,159.84 = 3,689.79 : x
  2. Step 2: Convert to fraction form
    7,442.35/11,159.84 = 3,689.79/x
  3. Step 3: Cross multiply
    7,442.35x = 11,159.84 × 3,689.79
  4. Step 4: Simplify right side
    7,442.35x = 41,177,433.41
  5. Step 5: Solve for x
    x = 41,177,433.41/7,442.35
  6. Step 6: Final answer
    x = 5,532.86

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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.