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Finding the Fourth Proportional to 5,855.87, 8,787.27 and 2,160.70

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Solution

The fourth proportional to 5,855.87, 8,787.27 and 2,160.70 is: 3,242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.87 : 8,787.27 = 2,160.70 : x
  2. Step 2: Convert to fraction form
    5,855.87/8,787.27 = 2,160.70/x
  3. Step 3: Cross multiply
    5,855.87x = 8,787.27 × 2,160.70
  4. Step 4: Simplify right side
    5,855.87x = 18,986,654.29
  5. Step 5: Solve for x
    x = 18,986,654.29/5,855.87
  6. Step 6: Final answer
    x = 3,242.33

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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.