Home / 2,108.21-2,910.49-1,269.11

Finding the Fourth Proportional to 2,108.21, 2,910.49 and 1,269.11

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Solution

The fourth proportional to 2,108.21, 2,910.49 and 1,269.11 is: 1,752.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.21 : 2,910.49 = 1,269.11 : x
  2. Step 2: Convert to fraction form
    2,108.21/2,910.49 = 1,269.11/x
  3. Step 3: Cross multiply
    2,108.21x = 2,910.49 × 1,269.11
  4. Step 4: Simplify right side
    2,108.21x = 3,693,724.53
  5. Step 5: Solve for x
    x = 3,693,724.53/2,108.21
  6. Step 6: Final answer
    x = 1,752.06

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1.5x scale

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.