Home / 2,083.28-3,124.68-696.56

Finding the Fourth Proportional to 2,083.28, 3,124.68 and 696.56

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Solution

The fourth proportional to 2,083.28, 3,124.68 and 696.56 is: 1,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.28 : 3,124.68 = 696.56 : x
  2. Step 2: Convert to fraction form
    2,083.28/3,124.68 = 696.56/x
  3. Step 3: Cross multiply
    2,083.28x = 3,124.68 × 696.56
  4. Step 4: Simplify right side
    2,083.28x = 2,176,527.10
  5. Step 5: Solve for x
    x = 2,176,527.10/2,083.28
  6. Step 6: Final answer
    x = 1,044.76

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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.