Home / 2,939.31-4,399.11-2,525.13

Finding the Fourth Proportional to 2,939.31, 4,399.11 and 2,525.13

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Solution

The fourth proportional to 2,939.31, 4,399.11 and 2,525.13 is: 3,779.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.31 : 4,399.11 = 2,525.13 : x
  2. Step 2: Convert to fraction form
    2,939.31/4,399.11 = 2,525.13/x
  3. Step 3: Cross multiply
    2,939.31x = 4,399.11 × 2,525.13
  4. Step 4: Simplify right side
    2,939.31x = 11,108,324.63
  5. Step 5: Solve for x
    x = 11,108,324.63/2,939.31
  6. Step 6: Final answer
    x = 3,779.23

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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.