Home / 2,752.13-4,128.19-1,020.75

Finding the Fourth Proportional to 2,752.13, 4,128.19 and 1,020.75

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Solution

The fourth proportional to 2,752.13, 4,128.19 and 1,020.75 is: 1,531.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.13 : 4,128.19 = 1,020.75 : x
  2. Step 2: Convert to fraction form
    2,752.13/4,128.19 = 1,020.75/x
  3. Step 3: Cross multiply
    2,752.13x = 4,128.19 × 1,020.75
  4. Step 4: Simplify right side
    2,752.13x = 4,213,849.94
  5. Step 5: Solve for x
    x = 4,213,849.94/2,752.13
  6. Step 6: Final answer
    x = 1,531.12

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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.