Home / 6,815.28-10,227.76-2,922.40

Finding the Fourth Proportional to 6,815.28, 10,227.76 and 2,922.40

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Solution

The fourth proportional to 6,815.28, 10,227.76 and 2,922.40 is: 4,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.28 : 10,227.76 = 2,922.40 : x
  2. Step 2: Convert to fraction form
    6,815.28/10,227.76 = 2,922.40/x
  3. Step 3: Cross multiply
    6,815.28x = 10,227.76 × 2,922.40
  4. Step 4: Simplify right side
    6,815.28x = 29,889,605.82
  5. Step 5: Solve for x
    x = 29,889,605.82/6,815.28
  6. Step 6: Final answer
    x = 4,385.68

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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.