Home / 2,681.40-4,013.46-1,381.08

Finding the Fourth Proportional to 2,681.40, 4,013.46 and 1,381.08

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Solution

The fourth proportional to 2,681.40, 4,013.46 and 1,381.08 is: 2,067.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.40 : 4,013.46 = 1,381.08 : x
  2. Step 2: Convert to fraction form
    2,681.40/4,013.46 = 1,381.08/x
  3. Step 3: Cross multiply
    2,681.40x = 4,013.46 × 1,381.08
  4. Step 4: Simplify right side
    2,681.40x = 5,542,909.34
  5. Step 5: Solve for x
    x = 5,542,909.34/2,681.40
  6. Step 6: Final answer
    x = 2,067.17

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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.