Home / 2,680.04-4,020.06-1,381.88

Finding the Fourth Proportional to 2,680.04, 4,020.06 and 1,381.88

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Solution

The fourth proportional to 2,680.04, 4,020.06 and 1,381.88 is: 2,072.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.04 : 4,020.06 = 1,381.88 : x
  2. Step 2: Convert to fraction form
    2,680.04/4,020.06 = 1,381.88/x
  3. Step 3: Cross multiply
    2,680.04x = 4,020.06 × 1,381.88
  4. Step 4: Simplify right side
    2,680.04x = 5,555,240.51
  5. Step 5: Solve for x
    x = 5,555,240.51/2,680.04
  6. Step 6: Final answer
    x = 2,072.82

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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.