Home / 7,865.31-11,799.99-2,318.43

Finding the Fourth Proportional to 7,865.31, 11,799.99 and 2,318.43

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Solution

The fourth proportional to 7,865.31, 11,799.99 and 2,318.43 is: 3,478.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.31 : 11,799.99 = 2,318.43 : x
  2. Step 2: Convert to fraction form
    7,865.31/11,799.99 = 2,318.43/x
  3. Step 3: Cross multiply
    7,865.31x = 11,799.99 × 2,318.43
  4. Step 4: Simplify right side
    7,865.31x = 27,357,450.82
  5. Step 5: Solve for x
    x = 27,357,450.82/7,865.31
  6. Step 6: Final answer
    x = 3,478.24

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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.