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Finding the Fourth Proportional to 5,878.52, 8,812.15 and 2,179.76

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Solution

The fourth proportional to 5,878.52, 8,812.15 and 2,179.76 is: 3,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.52 : 8,812.15 = 2,179.76 : x
  2. Step 2: Convert to fraction form
    5,878.52/8,812.15 = 2,179.76/x
  3. Step 3: Cross multiply
    5,878.52x = 8,812.15 × 2,179.76
  4. Step 4: Simplify right side
    5,878.52x = 19,208,372.08
  5. Step 5: Solve for x
    x = 19,208,372.08/5,878.52
  6. Step 6: Final answer
    x = 3,267.55

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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.