Home / 2,721.60-4,084.08-1,260.48

Finding the Fourth Proportional to 2,721.60, 4,084.08 and 1,260.48

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Solution

The fourth proportional to 2,721.60, 4,084.08 and 1,260.48 is: 1,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.60 : 4,084.08 = 1,260.48 : x
  2. Step 2: Convert to fraction form
    2,721.60/4,084.08 = 1,260.48/x
  3. Step 3: Cross multiply
    2,721.60x = 4,084.08 × 1,260.48
  4. Step 4: Simplify right side
    2,721.60x = 5,147,901.16
  5. Step 5: Solve for x
    x = 5,147,901.16/2,721.60
  6. Step 6: Final answer
    x = 1,891.50

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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.