Home / 5,456.85-8,188.52-2,169.06

Finding the Fourth Proportional to 5,456.85, 8,188.52 and 2,169.06

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Solution

The fourth proportional to 5,456.85, 8,188.52 and 2,169.06 is: 3,254.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.85 : 8,188.52 = 2,169.06 : x
  2. Step 2: Convert to fraction form
    5,456.85/8,188.52 = 2,169.06/x
  3. Step 3: Cross multiply
    5,456.85x = 8,188.52 × 2,169.06
  4. Step 4: Simplify right side
    5,456.85x = 17,761,380.35
  5. Step 5: Solve for x
    x = 17,761,380.35/5,456.85
  6. Step 6: Final answer
    x = 3,254.88

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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.