Home / 3,155.05-4,353.19-1,959.49

Finding the Fourth Proportional to 3,155.05, 4,353.19 and 1,959.49

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Solution

The fourth proportional to 3,155.05, 4,353.19 and 1,959.49 is: 2,703.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.05 : 4,353.19 = 1,959.49 : x
  2. Step 2: Convert to fraction form
    3,155.05/4,353.19 = 1,959.49/x
  3. Step 3: Cross multiply
    3,155.05x = 4,353.19 × 1,959.49
  4. Step 4: Simplify right side
    3,155.05x = 8,530,043.84
  5. Step 5: Solve for x
    x = 8,530,043.84/3,155.05
  6. Step 6: Final answer
    x = 2,703.61

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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.