Home / 4,778.60-7,170.70-2,005.02

Finding the Fourth Proportional to 4,778.60, 7,170.70 and 2,005.02

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Solution

The fourth proportional to 4,778.60, 7,170.70 and 2,005.02 is: 3,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.60 : 7,170.70 = 2,005.02 : x
  2. Step 2: Convert to fraction form
    4,778.60/7,170.70 = 2,005.02/x
  3. Step 3: Cross multiply
    4,778.60x = 7,170.70 × 2,005.02
  4. Step 4: Simplify right side
    4,778.60x = 14,377,396.91
  5. Step 5: Solve for x
    x = 14,377,396.91/4,778.60
  6. Step 6: Final answer
    x = 3,008.70

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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.