Home / 3,411.92-5,117.96-1,331.84

Finding the Fourth Proportional to 3,411.92, 5,117.96 and 1,331.84

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Solution

The fourth proportional to 3,411.92, 5,117.96 and 1,331.84 is: 1,997.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.92 : 5,117.96 = 1,331.84 : x
  2. Step 2: Convert to fraction form
    3,411.92/5,117.96 = 1,331.84/x
  3. Step 3: Cross multiply
    3,411.92x = 5,117.96 × 1,331.84
  4. Step 4: Simplify right side
    3,411.92x = 6,816,303.85
  5. Step 5: Solve for x
    x = 6,816,303.85/3,411.92
  6. Step 6: Final answer
    x = 1,997.79

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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.