Home / 5,481.31-8,221.15-2,017.75

Finding the Fourth Proportional to 5,481.31, 8,221.15 and 2,017.75

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Solution

The fourth proportional to 5,481.31, 8,221.15 and 2,017.75 is: 3,026.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.31 : 8,221.15 = 2,017.75 : x
  2. Step 2: Convert to fraction form
    5,481.31/8,221.15 = 2,017.75/x
  3. Step 3: Cross multiply
    5,481.31x = 8,221.15 × 2,017.75
  4. Step 4: Simplify right side
    5,481.31x = 16,588,225.41
  5. Step 5: Solve for x
    x = 16,588,225.41/5,481.31
  6. Step 6: Final answer
    x = 3,026.32

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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.