Home / 3,411.92-5,113.62-1,931.04

Finding the Fourth Proportional to 3,411.92, 5,113.62 and 1,931.04

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Solution

The fourth proportional to 3,411.92, 5,113.62 and 1,931.04 is: 2,894.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.92 : 5,113.62 = 1,931.04 : x
  2. Step 2: Convert to fraction form
    3,411.92/5,113.62 = 1,931.04/x
  3. Step 3: Cross multiply
    3,411.92x = 5,113.62 × 1,931.04
  4. Step 4: Simplify right side
    3,411.92x = 9,874,604.76
  5. Step 5: Solve for x
    x = 9,874,604.76/3,411.92
  6. Step 6: Final answer
    x = 2,894.15

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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.