Home / 3,958.15-5,458.63-3,398.44

Finding the Fourth Proportional to 3,958.15, 5,458.63 and 3,398.44

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Solution

The fourth proportional to 3,958.15, 5,458.63 and 3,398.44 is: 4,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.15 : 5,458.63 = 3,398.44 : x
  2. Step 2: Convert to fraction form
    3,958.15/5,458.63 = 3,398.44/x
  3. Step 3: Cross multiply
    3,958.15x = 5,458.63 × 3,398.44
  4. Step 4: Simplify right side
    3,958.15x = 18,550,826.54
  5. Step 5: Solve for x
    x = 18,550,826.54/3,958.15
  6. Step 6: Final answer
    x = 4,686.74

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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.