Home / 5,331.31-7,990-2,863.24

Finding the Fourth Proportional to 5,331.31, 7,990 and 2,863.24

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Solution

The fourth proportional to 5,331.31, 7,990 and 2,863.24 is: 4,291.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,331.31 : 7,990 = 2,863.24 : x
  2. Step 2: Convert to fraction form
    5,331.31/7,990 = 2,863.24/x
  3. Step 3: Cross multiply
    5,331.31x = 7,990 × 2,863.24
  4. Step 4: Simplify right side
    5,331.31x = 22,877,287.60
  5. Step 5: Solve for x
    x = 22,877,287.60/5,331.31
  6. Step 6: Final answer
    x = 4,291.12

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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.