Home / 3,031.72-4,537.97-1,989.25

Finding the Fourth Proportional to 3,031.72, 4,537.97 and 1,989.25

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Solution

The fourth proportional to 3,031.72, 4,537.97 and 1,989.25 is: 2,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.72 : 4,537.97 = 1,989.25 : x
  2. Step 2: Convert to fraction form
    3,031.72/4,537.97 = 1,989.25/x
  3. Step 3: Cross multiply
    3,031.72x = 4,537.97 × 1,989.25
  4. Step 4: Simplify right side
    3,031.72x = 9,027,158.22
  5. Step 5: Solve for x
    x = 9,027,158.22/3,031.72
  6. Step 6: Final answer
    x = 2,977.57

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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.