Home / 5,909.67-8,860.10-2,787.90

Finding the Fourth Proportional to 5,909.67, 8,860.10 and 2,787.90

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Solution

The fourth proportional to 5,909.67, 8,860.10 and 2,787.90 is: 4,179.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909.67 : 8,860.10 = 2,787.90 : x
  2. Step 2: Convert to fraction form
    5,909.67/8,860.10 = 2,787.90/x
  3. Step 3: Cross multiply
    5,909.67x = 8,860.10 × 2,787.90
  4. Step 4: Simplify right side
    5,909.67x = 24,701,072.79
  5. Step 5: Solve for x
    x = 24,701,072.79/5,909.67
  6. Step 6: Final answer
    x = 4,179.77

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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.