Home / 2,657.13-3,982.05-1,681.49

Finding the Fourth Proportional to 2,657.13, 3,982.05 and 1,681.49

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Solution

The fourth proportional to 2,657.13, 3,982.05 and 1,681.49 is: 2,519.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.13 : 3,982.05 = 1,681.49 : x
  2. Step 2: Convert to fraction form
    2,657.13/3,982.05 = 1,681.49/x
  3. Step 3: Cross multiply
    2,657.13x = 3,982.05 × 1,681.49
  4. Step 4: Simplify right side
    2,657.13x = 6,695,757.34
  5. Step 5: Solve for x
    x = 6,695,757.34/2,657.13
  6. Step 6: Final answer
    x = 2,519.92

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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.