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Finding the Fourth Proportional to 5,878.49, 8,812.11 and 2,179.73

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Solution

The fourth proportional to 5,878.49, 8,812.11 and 2,179.73 is: 3,267.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.49 : 8,812.11 = 2,179.73 : x
  2. Step 2: Convert to fraction form
    5,878.49/8,812.11 = 2,179.73/x
  3. Step 3: Cross multiply
    5,878.49x = 8,812.11 × 2,179.73
  4. Step 4: Simplify right side
    5,878.49x = 19,208,020.53
  5. Step 5: Solve for x
    x = 19,208,020.53/5,878.49
  6. Step 6: Final answer
    x = 3,267.51

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1.5x scale

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.