Home / 2,821.35-4,233.91-1,260.84

Finding the Fourth Proportional to 2,821.35, 4,233.91 and 1,260.84

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Solution

The fourth proportional to 2,821.35, 4,233.91 and 1,260.84 is: 1,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.35 : 4,233.91 = 1,260.84 : x
  2. Step 2: Convert to fraction form
    2,821.35/4,233.91 = 1,260.84/x
  3. Step 3: Cross multiply
    2,821.35x = 4,233.91 × 1,260.84
  4. Step 4: Simplify right side
    2,821.35x = 5,338,283.08
  5. Step 5: Solve for x
    x = 5,338,283.08/2,821.35
  6. Step 6: Final answer
    x = 1,892.10

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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.