Home / 6,928.89-10,387.13-2,543.28

Finding the Fourth Proportional to 6,928.89, 10,387.13 and 2,543.28

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Solution

The fourth proportional to 6,928.89, 10,387.13 and 2,543.28 is: 3,812.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.89 : 10,387.13 = 2,543.28 : x
  2. Step 2: Convert to fraction form
    6,928.89/10,387.13 = 2,543.28/x
  3. Step 3: Cross multiply
    6,928.89x = 10,387.13 × 2,543.28
  4. Step 4: Simplify right side
    6,928.89x = 26,417,367.27
  5. Step 5: Solve for x
    x = 26,417,367.27/6,928.89
  6. Step 6: Final answer
    x = 3,812.64

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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.