Home / 2,675.72-4,012.51-1,031.21

Finding the Fourth Proportional to 2,675.72, 4,012.51 and 1,031.21

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Solution

The fourth proportional to 2,675.72, 4,012.51 and 1,031.21 is: 1,546.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.72 : 4,012.51 = 1,031.21 : x
  2. Step 2: Convert to fraction form
    2,675.72/4,012.51 = 1,031.21/x
  3. Step 3: Cross multiply
    2,675.72x = 4,012.51 × 1,031.21
  4. Step 4: Simplify right side
    2,675.72x = 4,137,760.25
  5. Step 5: Solve for x
    x = 4,137,760.25/2,675.72
  6. Step 6: Final answer
    x = 1,546.41

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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.