Home / 2,947.19-4,067.23-1,620.86

Finding the Fourth Proportional to 2,947.19, 4,067.23 and 1,620.86

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Solution

The fourth proportional to 2,947.19, 4,067.23 and 1,620.86 is: 2,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.19 : 4,067.23 = 1,620.86 : x
  2. Step 2: Convert to fraction form
    2,947.19/4,067.23 = 1,620.86/x
  3. Step 3: Cross multiply
    2,947.19x = 4,067.23 × 1,620.86
  4. Step 4: Simplify right side
    2,947.19x = 6,592,402.31
  5. Step 5: Solve for x
    x = 6,592,402.31/2,947.19
  6. Step 6: Final answer
    x = 2,236.85

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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.