Home / 5,057.90-6,979.93-2,819.92

Finding the Fourth Proportional to 5,057.90, 6,979.93 and 2,819.92

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Solution

The fourth proportional to 5,057.90, 6,979.93 and 2,819.92 is: 3,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.90 : 6,979.93 = 2,819.92 : x
  2. Step 2: Convert to fraction form
    5,057.90/6,979.93 = 2,819.92/x
  3. Step 3: Cross multiply
    5,057.90x = 6,979.93 × 2,819.92
  4. Step 4: Simplify right side
    5,057.90x = 19,682,809.31
  5. Step 5: Solve for x
    x = 19,682,809.31/5,057.90
  6. Step 6: Final answer
    x = 3,891.50

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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.