Home / 7,079.31-9,769.50-3,892.95

Finding the Fourth Proportional to 7,079.31, 9,769.50 and 3,892.95

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Solution

The fourth proportional to 7,079.31, 9,769.50 and 3,892.95 is: 5,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.31 : 9,769.50 = 3,892.95 : x
  2. Step 2: Convert to fraction form
    7,079.31/9,769.50 = 3,892.95/x
  3. Step 3: Cross multiply
    7,079.31x = 9,769.50 × 3,892.95
  4. Step 4: Simplify right side
    7,079.31x = 38,032,175.03
  5. Step 5: Solve for x
    x = 38,032,175.03/7,079.31
  6. Step 6: Final answer
    x = 5,372.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.