Home / 3,411.93-5,117.13-1,331.97

Finding the Fourth Proportional to 3,411.93, 5,117.13 and 1,331.97

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Solution

The fourth proportional to 3,411.93, 5,117.13 and 1,331.97 is: 1,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.93 : 5,117.13 = 1,331.97 : x
  2. Step 2: Convert to fraction form
    3,411.93/5,117.13 = 1,331.97/x
  3. Step 3: Cross multiply
    3,411.93x = 5,117.13 × 1,331.97
  4. Step 4: Simplify right side
    3,411.93x = 6,815,863.65
  5. Step 5: Solve for x
    x = 6,815,863.65/3,411.93
  6. Step 6: Final answer
    x = 1,997.66

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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.