Home / 4,778.74-7,169.83-2,146.04

Finding the Fourth Proportional to 4,778.74, 7,169.83 and 2,146.04

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Solution

The fourth proportional to 4,778.74, 7,169.83 and 2,146.04 is: 3,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.74 : 7,169.83 = 2,146.04 : x
  2. Step 2: Convert to fraction form
    4,778.74/7,169.83 = 2,146.04/x
  3. Step 3: Cross multiply
    4,778.74x = 7,169.83 × 2,146.04
  4. Step 4: Simplify right side
    4,778.74x = 15,386,741.97
  5. Step 5: Solve for x
    x = 15,386,741.97/4,778.74
  6. Step 6: Final answer
    x = 3,219.83

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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.