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Finding the Fourth Proportional to 6,076.88, 9,115.31 and 1,972.88

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Solution

The fourth proportional to 6,076.88, 9,115.31 and 1,972.88 is: 2,959.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,076.88 : 9,115.31 = 1,972.88 : x
  2. Step 2: Convert to fraction form
    6,076.88/9,115.31 = 1,972.88/x
  3. Step 3: Cross multiply
    6,076.88x = 9,115.31 × 1,972.88
  4. Step 4: Simplify right side
    6,076.88x = 17,983,372.15
  5. Step 5: Solve for x
    x = 17,983,372.15/6,076.88
  6. Step 6: Final answer
    x = 2,959.31

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1.5x scale

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.