Home / 7,631.33-11,451.29-4,121.28

Finding the Fourth Proportional to 7,631.33, 11,451.29 and 4,121.28

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Solution

The fourth proportional to 7,631.33, 11,451.29 and 4,121.28 is: 6,184.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.33 : 11,451.29 = 4,121.28 : x
  2. Step 2: Convert to fraction form
    7,631.33/11,451.29 = 4,121.28/x
  3. Step 3: Cross multiply
    7,631.33x = 11,451.29 × 4,121.28
  4. Step 4: Simplify right side
    7,631.33x = 47,193,951.84
  5. Step 5: Solve for x
    x = 47,193,951.84/7,631.33
  6. Step 6: Final answer
    x = 6,184.24

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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.