Home / 2,767.91-3,819.49-1,572.92

Finding the Fourth Proportional to 2,767.91, 3,819.49 and 1,572.92

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Solution

The fourth proportional to 2,767.91, 3,819.49 and 1,572.92 is: 2,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.91 : 3,819.49 = 1,572.92 : x
  2. Step 2: Convert to fraction form
    2,767.91/3,819.49 = 1,572.92/x
  3. Step 3: Cross multiply
    2,767.91x = 3,819.49 × 1,572.92
  4. Step 4: Simplify right side
    2,767.91x = 6,007,743.50
  5. Step 5: Solve for x
    x = 6,007,743.50/2,767.91
  6. Step 6: Final answer
    x = 2,170.50

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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.