Home / 4,184.40-6,278.20-4,118.80

Finding the Fourth Proportional to 4,184.40, 6,278.20 and 4,118.80

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Solution

The fourth proportional to 4,184.40, 6,278.20 and 4,118.80 is: 6,179.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,184.40 : 6,278.20 = 4,118.80 : x
  2. Step 2: Convert to fraction form
    4,184.40/6,278.20 = 4,118.80/x
  3. Step 3: Cross multiply
    4,184.40x = 6,278.20 × 4,118.80
  4. Step 4: Simplify right side
    4,184.40x = 25,858,650.16
  5. Step 5: Solve for x
    x = 25,858,650.16/4,184.40
  6. Step 6: Final answer
    x = 6,179.77

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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.