Home / 2,721.28-4,085.36-1,751.68

Finding the Fourth Proportional to 2,721.28, 4,085.36 and 1,751.68

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Solution

The fourth proportional to 2,721.28, 4,085.36 and 1,751.68 is: 2,629.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.28 : 4,085.36 = 1,751.68 : x
  2. Step 2: Convert to fraction form
    2,721.28/4,085.36 = 1,751.68/x
  3. Step 3: Cross multiply
    2,721.28x = 4,085.36 × 1,751.68
  4. Step 4: Simplify right side
    2,721.28x = 7,156,243.40
  5. Step 5: Solve for x
    x = 7,156,243.40/2,721.28
  6. Step 6: Final answer
    x = 2,629.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.