Home / 5,680.67-8,518.31-1,982.45

Finding the Fourth Proportional to 5,680.67, 8,518.31 and 1,982.45

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Solution

The fourth proportional to 5,680.67, 8,518.31 and 1,982.45 is: 2,972.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.67 : 8,518.31 = 1,982.45 : x
  2. Step 2: Convert to fraction form
    5,680.67/8,518.31 = 1,982.45/x
  3. Step 3: Cross multiply
    5,680.67x = 8,518.31 × 1,982.45
  4. Step 4: Simplify right side
    5,680.67x = 16,887,123.66
  5. Step 5: Solve for x
    x = 16,887,123.66/5,680.67
  6. Step 6: Final answer
    x = 2,972.73

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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.