Home / 2,821.28-4,228.36-1,432.52

Finding the Fourth Proportional to 2,821.28, 4,228.36 and 1,432.52

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Solution

The fourth proportional to 2,821.28, 4,228.36 and 1,432.52 is: 2,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.28 : 4,228.36 = 1,432.52 : x
  2. Step 2: Convert to fraction form
    2,821.28/4,228.36 = 1,432.52/x
  3. Step 3: Cross multiply
    2,821.28x = 4,228.36 × 1,432.52
  4. Step 4: Simplify right side
    2,821.28x = 6,057,210.27
  5. Step 5: Solve for x
    x = 6,057,210.27/2,821.28
  6. Step 6: Final answer
    x = 2,146.97

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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.