Home / 4,815.38-7,221.60-2,042

Finding the Fourth Proportional to 4,815.38, 7,221.60 and 2,042

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Solution

The fourth proportional to 4,815.38, 7,221.60 and 2,042 is: 3,062.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.38 : 7,221.60 = 2,042 : x
  2. Step 2: Convert to fraction form
    4,815.38/7,221.60 = 2,042/x
  3. Step 3: Cross multiply
    4,815.38x = 7,221.60 × 2,042
  4. Step 4: Simplify right side
    4,815.38x = 14,746,507.20
  5. Step 5: Solve for x
    x = 14,746,507.20/4,815.38
  6. Step 6: Final answer
    x = 3,062.38

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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.