Home / 2,251.35-3,106.65-1,411.78

Finding the Fourth Proportional to 2,251.35, 3,106.65 and 1,411.78

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Solution

The fourth proportional to 2,251.35, 3,106.65 and 1,411.78 is: 1,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.35 : 3,106.65 = 1,411.78 : x
  2. Step 2: Convert to fraction form
    2,251.35/3,106.65 = 1,411.78/x
  3. Step 3: Cross multiply
    2,251.35x = 3,106.65 × 1,411.78
  4. Step 4: Simplify right side
    2,251.35x = 4,385,906.34
  5. Step 5: Solve for x
    x = 4,385,906.34/2,251.35
  6. Step 6: Final answer
    x = 1,948.13

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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.