Home / 6,891.64-10,340.87-2,731.55

Finding the Fourth Proportional to 6,891.64, 10,340.87 and 2,731.55

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Solution

The fourth proportional to 6,891.64, 10,340.87 and 2,731.55 is: 4,098.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.64 : 10,340.87 = 2,731.55 : x
  2. Step 2: Convert to fraction form
    6,891.64/10,340.87 = 2,731.55/x
  3. Step 3: Cross multiply
    6,891.64x = 10,340.87 × 2,731.55
  4. Step 4: Simplify right side
    6,891.64x = 28,246,625.89
  5. Step 5: Solve for x
    x = 28,246,625.89/6,891.64
  6. Step 6: Final answer
    x = 4,098.68

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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.