Home / 5,680.60-8,520.93-1,982.81

Finding the Fourth Proportional to 5,680.60, 8,520.93 and 1,982.81

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Solution

The fourth proportional to 5,680.60, 8,520.93 and 1,982.81 is: 2,974.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.60 : 8,520.93 = 1,982.81 : x
  2. Step 2: Convert to fraction form
    5,680.60/8,520.93 = 1,982.81/x
  3. Step 3: Cross multiply
    5,680.60x = 8,520.93 × 1,982.81
  4. Step 4: Simplify right side
    5,680.60x = 16,895,385.21
  5. Step 5: Solve for x
    x = 16,895,385.21/5,680.60
  6. Step 6: Final answer
    x = 2,974.23

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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.