Home / 2,721.20-3,749.88-1,933.04

Finding the Fourth Proportional to 2,721.20, 3,749.88 and 1,933.04

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Solution

The fourth proportional to 2,721.20, 3,749.88 and 1,933.04 is: 2,663.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.20 : 3,749.88 = 1,933.04 : x
  2. Step 2: Convert to fraction form
    2,721.20/3,749.88 = 1,933.04/x
  3. Step 3: Cross multiply
    2,721.20x = 3,749.88 × 1,933.04
  4. Step 4: Simplify right side
    2,721.20x = 7,248,668.04
  5. Step 5: Solve for x
    x = 7,248,668.04/2,721.20
  6. Step 6: Final answer
    x = 2,663.78

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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.