Home / 2,821.52-4,230.92-1,262

Finding the Fourth Proportional to 2,821.52, 4,230.92 and 1,262

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Solution

The fourth proportional to 2,821.52, 4,230.92 and 1,262 is: 1,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.52 : 4,230.92 = 1,262 : x
  2. Step 2: Convert to fraction form
    2,821.52/4,230.92 = 1,262/x
  3. Step 3: Cross multiply
    2,821.52x = 4,230.92 × 1,262
  4. Step 4: Simplify right side
    2,821.52x = 5,339,421.04
  5. Step 5: Solve for x
    x = 5,339,421.04/2,821.52
  6. Step 6: Final answer
    x = 1,892.39

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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.