Home / 5,180.38-7,771.12-1,894.19

Finding the Fourth Proportional to 5,180.38, 7,771.12 and 1,894.19

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Solution

The fourth proportional to 5,180.38, 7,771.12 and 1,894.19 is: 2,841.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.38 : 7,771.12 = 1,894.19 : x
  2. Step 2: Convert to fraction form
    5,180.38/7,771.12 = 1,894.19/x
  3. Step 3: Cross multiply
    5,180.38x = 7,771.12 × 1,894.19
  4. Step 4: Simplify right side
    5,180.38x = 14,719,934.20
  5. Step 5: Solve for x
    x = 14,719,934.20/5,180.38
  6. Step 6: Final answer
    x = 2,841.48

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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.