Home / 5,680.56-8,520.60-1,982.77

Finding the Fourth Proportional to 5,680.56, 8,520.60 and 1,982.77

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Solution

The fourth proportional to 5,680.56, 8,520.60 and 1,982.77 is: 2,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.56 : 8,520.60 = 1,982.77 : x
  2. Step 2: Convert to fraction form
    5,680.56/8,520.60 = 1,982.77/x
  3. Step 3: Cross multiply
    5,680.56x = 8,520.60 × 1,982.77
  4. Step 4: Simplify right side
    5,680.56x = 16,894,390.06
  5. Step 5: Solve for x
    x = 16,894,390.06/5,680.56
  6. Step 6: Final answer
    x = 2,974.07

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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.