Home / 3,987.74-5,976.34-2,013.36

Finding the Fourth Proportional to 3,987.74, 5,976.34 and 2,013.36

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Solution

The fourth proportional to 3,987.74, 5,976.34 and 2,013.36 is: 3,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.74 : 5,976.34 = 2,013.36 : x
  2. Step 2: Convert to fraction form
    3,987.74/5,976.34 = 2,013.36/x
  3. Step 3: Cross multiply
    3,987.74x = 5,976.34 × 2,013.36
  4. Step 4: Simplify right side
    3,987.74x = 12,032,523.90
  5. Step 5: Solve for x
    x = 12,032,523.90/3,987.74
  6. Step 6: Final answer
    x = 3,017.38

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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.