Home / 6,926.28-10,390.84-2,543.78

Finding the Fourth Proportional to 6,926.28, 10,390.84 and 2,543.78

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Solution

The fourth proportional to 6,926.28, 10,390.84 and 2,543.78 is: 3,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,926.28 : 10,390.84 = 2,543.78 : x
  2. Step 2: Convert to fraction form
    6,926.28/10,390.84 = 2,543.78/x
  3. Step 3: Cross multiply
    6,926.28x = 10,390.84 × 2,543.78
  4. Step 4: Simplify right side
    6,926.28x = 26,432,010.98
  5. Step 5: Solve for x
    x = 26,432,010.98/6,926.28
  6. Step 6: Final answer
    x = 3,816.19

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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.