Home / 3,127.79-4,691.69-2,540.00

Finding the Fourth Proportional to 3,127.79, 4,691.69 and 2,540.00

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Solution

The fourth proportional to 3,127.79, 4,691.69 and 2,540.00 is: 3,810.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.79 : 4,691.69 = 2,540.00 : x
  2. Step 2: Convert to fraction form
    3,127.79/4,691.69 = 2,540.00/x
  3. Step 3: Cross multiply
    3,127.79x = 4,691.69 × 2,540.00
  4. Step 4: Simplify right side
    3,127.79x = 11,916,856.44
  5. Step 5: Solve for x
    x = 11,916,856.44/3,127.79
  6. Step 6: Final answer
    x = 3,810.00

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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.