Home / 3,928.15-5,416.82-2,601.37

Finding the Fourth Proportional to 3,928.15, 5,416.82 and 2,601.37

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Solution

The fourth proportional to 3,928.15, 5,416.82 and 2,601.37 is: 3,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.15 : 5,416.82 = 2,601.37 : x
  2. Step 2: Convert to fraction form
    3,928.15/5,416.82 = 2,601.37/x
  3. Step 3: Cross multiply
    3,928.15x = 5,416.82 × 2,601.37
  4. Step 4: Simplify right side
    3,928.15x = 14,091,125.96
  5. Step 5: Solve for x
    x = 14,091,125.96/3,928.15
  6. Step 6: Final answer
    x = 3,587.22

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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.