Home / 7,972.89-11,961.90-2,427.31

Finding the Fourth Proportional to 7,972.89, 11,961.90 and 2,427.31

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Solution

The fourth proportional to 7,972.89, 11,961.90 and 2,427.31 is: 3,641.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.89 : 11,961.90 = 2,427.31 : x
  2. Step 2: Convert to fraction form
    7,972.89/11,961.90 = 2,427.31/x
  3. Step 3: Cross multiply
    7,972.89x = 11,961.90 × 2,427.31
  4. Step 4: Simplify right side
    7,972.89x = 29,035,203.52
  5. Step 5: Solve for x
    x = 29,035,203.52/7,972.89
  6. Step 6: Final answer
    x = 3,641.74

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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.