Home / 3,835.91-5,756.94-1,987.55

Finding the Fourth Proportional to 3,835.91, 5,756.94 and 1,987.55

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Solution

The fourth proportional to 3,835.91, 5,756.94 and 1,987.55 is: 2,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.91 : 5,756.94 = 1,987.55 : x
  2. Step 2: Convert to fraction form
    3,835.91/5,756.94 = 1,987.55/x
  3. Step 3: Cross multiply
    3,835.91x = 5,756.94 × 1,987.55
  4. Step 4: Simplify right side
    3,835.91x = 11,442,167.37
  5. Step 5: Solve for x
    x = 11,442,167.37/3,835.91
  6. Step 6: Final answer
    x = 2,982.91

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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.