Home / 3,987.45-5,977.32-2,233.31

Finding the Fourth Proportional to 3,987.45, 5,977.32 and 2,233.31

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Solution

The fourth proportional to 3,987.45, 5,977.32 and 2,233.31 is: 3,347.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.45 : 5,977.32 = 2,233.31 : x
  2. Step 2: Convert to fraction form
    3,987.45/5,977.32 = 2,233.31/x
  3. Step 3: Cross multiply
    3,987.45x = 5,977.32 × 2,233.31
  4. Step 4: Simplify right side
    3,987.45x = 13,349,170.27
  5. Step 5: Solve for x
    x = 13,349,170.27/3,987.45
  6. Step 6: Final answer
    x = 3,347.80

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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.