Home / 4,478.60-6,174.42-3,778.76

Finding the Fourth Proportional to 4,478.60, 6,174.42 and 3,778.76

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Solution

The fourth proportional to 4,478.60, 6,174.42 and 3,778.76 is: 5,209.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.60 : 6,174.42 = 3,778.76 : x
  2. Step 2: Convert to fraction form
    4,478.60/6,174.42 = 3,778.76/x
  3. Step 3: Cross multiply
    4,478.60x = 6,174.42 × 3,778.76
  4. Step 4: Simplify right side
    4,478.60x = 23,331,651.32
  5. Step 5: Solve for x
    x = 23,331,651.32/4,478.60
  6. Step 6: Final answer
    x = 5,209.59

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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.