Home / 2,108.97-2,910.65-1,270.11

Finding the Fourth Proportional to 2,108.97, 2,910.65 and 1,270.11

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Solution

The fourth proportional to 2,108.97, 2,910.65 and 1,270.11 is: 1,752.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.97 : 2,910.65 = 1,270.11 : x
  2. Step 2: Convert to fraction form
    2,108.97/2,910.65 = 1,270.11/x
  3. Step 3: Cross multiply
    2,108.97x = 2,910.65 × 1,270.11
  4. Step 4: Simplify right side
    2,108.97x = 3,696,839.32
  5. Step 5: Solve for x
    x = 3,696,839.32/2,108.97
  6. Step 6: Final answer
    x = 1,752.91

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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.