Home / 2,721.20-3,752.76-1,935.92

Finding the Fourth Proportional to 2,721.20, 3,752.76 and 1,935.92

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Solution

The fourth proportional to 2,721.20, 3,752.76 and 1,935.92 is: 2,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.20 : 3,752.76 = 1,935.92 : x
  2. Step 2: Convert to fraction form
    2,721.20/3,752.76 = 1,935.92/x
  3. Step 3: Cross multiply
    2,721.20x = 3,752.76 × 1,935.92
  4. Step 4: Simplify right side
    2,721.20x = 7,265,043.14
  5. Step 5: Solve for x
    x = 7,265,043.14/2,721.20
  6. Step 6: Final answer
    x = 2,669.79

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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.