Home / 2,680.56-4,020.72-949.44

Finding the Fourth Proportional to 2,680.56, 4,020.72 and 949.44

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Solution

The fourth proportional to 2,680.56, 4,020.72 and 949.44 is: 1,424.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.56 : 4,020.72 = 949.44 : x
  2. Step 2: Convert to fraction form
    2,680.56/4,020.72 = 949.44/x
  3. Step 3: Cross multiply
    2,680.56x = 4,020.72 × 949.44
  4. Step 4: Simplify right side
    2,680.56x = 3,817,432.40
  5. Step 5: Solve for x
    x = 3,817,432.40/2,680.56
  6. Step 6: Final answer
    x = 1,424.12

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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.