Home / 6,981.82-10,472.64-2,821.76

Finding the Fourth Proportional to 6,981.82, 10,472.64 and 2,821.76

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Solution

The fourth proportional to 6,981.82, 10,472.64 and 2,821.76 is: 4,232.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.82 : 10,472.64 = 2,821.76 : x
  2. Step 2: Convert to fraction form
    6,981.82/10,472.64 = 2,821.76/x
  3. Step 3: Cross multiply
    6,981.82x = 10,472.64 × 2,821.76
  4. Step 4: Simplify right side
    6,981.82x = 29,551,298.30
  5. Step 5: Solve for x
    x = 29,551,298.30/6,981.82
  6. Step 6: Final answer
    x = 4,232.61

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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.