Home / 2,738.80-4,116.30-2,382.40

Finding the Fourth Proportional to 2,738.80, 4,116.30 and 2,382.40

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Solution

The fourth proportional to 2,738.80, 4,116.30 and 2,382.40 is: 3,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.80 : 4,116.30 = 2,382.40 : x
  2. Step 2: Convert to fraction form
    2,738.80/4,116.30 = 2,382.40/x
  3. Step 3: Cross multiply
    2,738.80x = 4,116.30 × 2,382.40
  4. Step 4: Simplify right side
    2,738.80x = 9,806,673.12
  5. Step 5: Solve for x
    x = 9,806,673.12/2,738.80
  6. Step 6: Final answer
    x = 3,580.65

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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.