Home / 3,877.72-5,346.31-2,512.58

Finding the Fourth Proportional to 3,877.72, 5,346.31 and 2,512.58

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Solution

The fourth proportional to 3,877.72, 5,346.31 and 2,512.58 is: 3,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.72 : 5,346.31 = 2,512.58 : x
  2. Step 2: Convert to fraction form
    3,877.72/5,346.31 = 2,512.58/x
  3. Step 3: Cross multiply
    3,877.72x = 5,346.31 × 2,512.58
  4. Step 4: Simplify right side
    3,877.72x = 13,432,998.57
  5. Step 5: Solve for x
    x = 13,432,998.57/3,877.72
  6. Step 6: Final answer
    x = 3,464.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.