Home / 3,091.92-4,635.96-1,935.12

Finding the Fourth Proportional to 3,091.92, 4,635.96 and 1,935.12

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Solution

The fourth proportional to 3,091.92, 4,635.96 and 1,935.12 is: 2,901.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.92 : 4,635.96 = 1,935.12 : x
  2. Step 2: Convert to fraction form
    3,091.92/4,635.96 = 1,935.12/x
  3. Step 3: Cross multiply
    3,091.92x = 4,635.96 × 1,935.12
  4. Step 4: Simplify right side
    3,091.92x = 8,971,138.92
  5. Step 5: Solve for x
    x = 8,971,138.92/3,091.92
  6. Step 6: Final answer
    x = 2,901.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.