Home / 2,021.44-3,031.44-1,372.72

Finding the Fourth Proportional to 2,021.44, 3,031.44 and 1,372.72

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Solution

The fourth proportional to 2,021.44, 3,031.44 and 1,372.72 is: 2,058.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.44 : 3,031.44 = 1,372.72 : x
  2. Step 2: Convert to fraction form
    2,021.44/3,031.44 = 1,372.72/x
  3. Step 3: Cross multiply
    2,021.44x = 3,031.44 × 1,372.72
  4. Step 4: Simplify right side
    2,021.44x = 4,161,318.32
  5. Step 5: Solve for x
    x = 4,161,318.32/2,021.44
  6. Step 6: Final answer
    x = 2,058.59

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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.