Home / 2,512.47-3,765.20-2,140.34

Finding the Fourth Proportional to 2,512.47, 3,765.20 and 2,140.34

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Solution

The fourth proportional to 2,512.47, 3,765.20 and 2,140.34 is: 3,207.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.47 : 3,765.20 = 2,140.34 : x
  2. Step 2: Convert to fraction form
    2,512.47/3,765.20 = 2,140.34/x
  3. Step 3: Cross multiply
    2,512.47x = 3,765.20 × 2,140.34
  4. Step 4: Simplify right side
    2,512.47x = 8,058,778.64
  5. Step 5: Solve for x
    x = 8,058,778.64/2,512.47
  6. Step 6: Final answer
    x = 3,207.51

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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.