Home / 3,140.80-4,713.90-2,525.20

Finding the Fourth Proportional to 3,140.80, 4,713.90 and 2,525.20

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Solution

The fourth proportional to 3,140.80, 4,713.90 and 2,525.20 is: 3,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.80 : 4,713.90 = 2,525.20 : x
  2. Step 2: Convert to fraction form
    3,140.80/4,713.90 = 2,525.20/x
  3. Step 3: Cross multiply
    3,140.80x = 4,713.90 × 2,525.20
  4. Step 4: Simplify right side
    3,140.80x = 11,903,540.28
  5. Step 5: Solve for x
    x = 11,903,540.28/3,140.80
  6. Step 6: Final answer
    x = 3,789.97

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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.