Home / 2,681.80-4,020.18-1,382.92

Finding the Fourth Proportional to 2,681.80, 4,020.18 and 1,382.92

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Solution

The fourth proportional to 2,681.80, 4,020.18 and 1,382.92 is: 2,073.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.80 : 4,020.18 = 1,382.92 : x
  2. Step 2: Convert to fraction form
    2,681.80/4,020.18 = 1,382.92/x
  3. Step 3: Cross multiply
    2,681.80x = 4,020.18 × 1,382.92
  4. Step 4: Simplify right side
    2,681.80x = 5,559,587.33
  5. Step 5: Solve for x
    x = 5,559,587.33/2,681.80
  6. Step 6: Final answer
    x = 2,073.08

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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.