Home / 2,867.55-3,947.13-2,512.63

Finding the Fourth Proportional to 2,867.55, 3,947.13 and 2,512.63

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Solution

The fourth proportional to 2,867.55, 3,947.13 and 2,512.63 is: 3,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.55 : 3,947.13 = 2,512.63 : x
  2. Step 2: Convert to fraction form
    2,867.55/3,947.13 = 2,512.63/x
  3. Step 3: Cross multiply
    2,867.55x = 3,947.13 × 2,512.63
  4. Step 4: Simplify right side
    2,867.55x = 9,917,677.25
  5. Step 5: Solve for x
    x = 9,917,677.25/2,867.55
  6. Step 6: Final answer
    x = 3,458.59

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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.