Home / 5,057.38-6,979.26-2,819.18

Finding the Fourth Proportional to 5,057.38, 6,979.26 and 2,819.18

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Solution

The fourth proportional to 5,057.38, 6,979.26 and 2,819.18 is: 3,890.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.38 : 6,979.26 = 2,819.18 : x
  2. Step 2: Convert to fraction form
    5,057.38/6,979.26 = 2,819.18/x
  3. Step 3: Cross multiply
    5,057.38x = 6,979.26 × 2,819.18
  4. Step 4: Simplify right side
    5,057.38x = 19,675,798.60
  5. Step 5: Solve for x
    x = 19,675,798.60/5,057.38
  6. Step 6: Final answer
    x = 3,890.51

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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.