Home / 6,422.46-8,855.98-4,180.20

Finding the Fourth Proportional to 6,422.46, 8,855.98 and 4,180.20

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Solution

The fourth proportional to 6,422.46, 8,855.98 and 4,180.20 is: 5,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.46 : 8,855.98 = 4,180.20 : x
  2. Step 2: Convert to fraction form
    6,422.46/8,855.98 = 4,180.20/x
  3. Step 3: Cross multiply
    6,422.46x = 8,855.98 × 4,180.20
  4. Step 4: Simplify right side
    6,422.46x = 37,019,767.60
  5. Step 5: Solve for x
    x = 37,019,767.60/6,422.46
  6. Step 6: Final answer
    x = 5,764.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.