Home / 5,181.38-7,150.31-2,943.25

Finding the Fourth Proportional to 5,181.38, 7,150.31 and 2,943.25

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Solution

The fourth proportional to 5,181.38, 7,150.31 and 2,943.25 is: 4,061.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.38 : 7,150.31 = 2,943.25 : x
  2. Step 2: Convert to fraction form
    5,181.38/7,150.31 = 2,943.25/x
  3. Step 3: Cross multiply
    5,181.38x = 7,150.31 × 2,943.25
  4. Step 4: Simplify right side
    5,181.38x = 21,045,149.91
  5. Step 5: Solve for x
    x = 21,045,149.91/5,181.38
  6. Step 6: Final answer
    x = 4,061.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.