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Finding the Fourth Proportional to 5,876.85, 8,815.59 and 2,178.93

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Solution

The fourth proportional to 5,876.85, 8,815.59 and 2,178.93 is: 3,268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,876.85 : 8,815.59 = 2,178.93 : x
  2. Step 2: Convert to fraction form
    5,876.85/8,815.59 = 2,178.93/x
  3. Step 3: Cross multiply
    5,876.85x = 8,815.59 × 2,178.93
  4. Step 4: Simplify right side
    5,876.85x = 19,208,553.52
  5. Step 5: Solve for x
    x = 19,208,553.52/5,876.85
  6. Step 6: Final answer
    x = 3,268.51

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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.