Home / 6,118.40-9,175.44-2,221.76

Finding the Fourth Proportional to 6,118.40, 9,175.44 and 2,221.76

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Solution

The fourth proportional to 6,118.40, 9,175.44 and 2,221.76 is: 3,331.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,118.40 : 9,175.44 = 2,221.76 : x
  2. Step 2: Convert to fraction form
    6,118.40/9,175.44 = 2,221.76/x
  3. Step 3: Cross multiply
    6,118.40x = 9,175.44 × 2,221.76
  4. Step 4: Simplify right side
    6,118.40x = 20,385,625.57
  5. Step 5: Solve for x
    x = 20,385,625.57/6,118.40
  6. Step 6: Final answer
    x = 3,331.86

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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.