Home / 4,778.64-7,149.33-4,188.96

Finding the Fourth Proportional to 4,778.64, 7,149.33 and 4,188.96

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Solution

The fourth proportional to 4,778.64, 7,149.33 and 4,188.96 is: 6,267.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.64 : 7,149.33 = 4,188.96 : x
  2. Step 2: Convert to fraction form
    4,778.64/7,149.33 = 4,188.96/x
  3. Step 3: Cross multiply
    4,778.64x = 7,149.33 × 4,188.96
  4. Step 4: Simplify right side
    4,778.64x = 29,948,257.40
  5. Step 5: Solve for x
    x = 29,948,257.40/4,778.64
  6. Step 6: Final answer
    x = 6,267.11

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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.