Home / 7,422.40-11,134.35-2,743.66

Finding the Fourth Proportional to 7,422.40, 11,134.35 and 2,743.66

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Solution

The fourth proportional to 7,422.40, 11,134.35 and 2,743.66 is: 4,115.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.40 : 11,134.35 = 2,743.66 : x
  2. Step 2: Convert to fraction form
    7,422.40/11,134.35 = 2,743.66/x
  3. Step 3: Cross multiply
    7,422.40x = 11,134.35 × 2,743.66
  4. Step 4: Simplify right side
    7,422.40x = 30,548,870.72
  5. Step 5: Solve for x
    x = 30,548,870.72/7,422.40
  6. Step 6: Final answer
    x = 4,115.77

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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.