Home / 2,721.20-3,754.17-1,776.68

Finding the Fourth Proportional to 2,721.20, 3,754.17 and 1,776.68

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Solution

The fourth proportional to 2,721.20, 3,754.17 and 1,776.68 is: 2,451.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.20 : 3,754.17 = 1,776.68 : x
  2. Step 2: Convert to fraction form
    2,721.20/3,754.17 = 1,776.68/x
  3. Step 3: Cross multiply
    2,721.20x = 3,754.17 × 1,776.68
  4. Step 4: Simplify right side
    2,721.20x = 6,669,958.76
  5. Step 5: Solve for x
    x = 6,669,958.76/2,721.20
  6. Step 6: Final answer
    x = 2,451.11

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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.