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Finding the Fourth Proportional to 5,787.22, 8,680.85 and 2,089.45

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Solution

The fourth proportional to 5,787.22, 8,680.85 and 2,089.45 is: 3,134.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.22 : 8,680.85 = 2,089.45 : x
  2. Step 2: Convert to fraction form
    5,787.22/8,680.85 = 2,089.45/x
  3. Step 3: Cross multiply
    5,787.22x = 8,680.85 × 2,089.45
  4. Step 4: Simplify right side
    5,787.22x = 18,138,155.57
  5. Step 5: Solve for x
    x = 18,138,155.57/5,787.22
  6. Step 6: Final answer
    x = 3,134.17

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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.