Home / 7,102.31-10,653.45-2,171.95

Finding the Fourth Proportional to 7,102.31, 10,653.45 and 2,171.95

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Solution

The fourth proportional to 7,102.31, 10,653.45 and 2,171.95 is: 3,257.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.31 : 10,653.45 = 2,171.95 : x
  2. Step 2: Convert to fraction form
    7,102.31/10,653.45 = 2,171.95/x
  3. Step 3: Cross multiply
    7,102.31x = 10,653.45 × 2,171.95
  4. Step 4: Simplify right side
    7,102.31x = 23,138,760.73
  5. Step 5: Solve for x
    x = 23,138,760.73/7,102.31
  6. Step 6: Final answer
    x = 3,257.92

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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.