Home / 7,961.60-11,947.61-3,031.29

Finding the Fourth Proportional to 7,961.60, 11,947.61 and 3,031.29

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Solution

The fourth proportional to 7,961.60, 11,947.61 and 3,031.29 is: 4,548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.60 : 11,947.61 = 3,031.29 : x
  2. Step 2: Convert to fraction form
    7,961.60/11,947.61 = 3,031.29/x
  3. Step 3: Cross multiply
    7,961.60x = 11,947.61 × 3,031.29
  4. Step 4: Simplify right side
    7,961.60x = 36,216,670.72
  5. Step 5: Solve for x
    x = 36,216,670.72/7,961.60
  6. Step 6: Final answer
    x = 4,548.92

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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.