Home / 2,721.28-3,752.04-1,933.96

Finding the Fourth Proportional to 2,721.28, 3,752.04 and 1,933.96

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Solution

The fourth proportional to 2,721.28, 3,752.04 and 1,933.96 is: 2,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.28 : 3,752.04 = 1,933.96 : x
  2. Step 2: Convert to fraction form
    2,721.28/3,752.04 = 1,933.96/x
  3. Step 3: Cross multiply
    2,721.28x = 3,752.04 × 1,933.96
  4. Step 4: Simplify right side
    2,721.28x = 7,256,295.28
  5. Step 5: Solve for x
    x = 7,256,295.28/2,721.28
  6. Step 6: Final answer
    x = 2,666.50

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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.