Home / 2,108.20-2,910.50-1,269.13

Finding the Fourth Proportional to 2,108.20, 2,910.50 and 1,269.13

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Solution

The fourth proportional to 2,108.20, 2,910.50 and 1,269.13 is: 1,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.20 : 2,910.50 = 1,269.13 : x
  2. Step 2: Convert to fraction form
    2,108.20/2,910.50 = 1,269.13/x
  3. Step 3: Cross multiply
    2,108.20x = 2,910.50 × 1,269.13
  4. Step 4: Simplify right side
    2,108.20x = 3,693,802.87
  5. Step 5: Solve for x
    x = 3,693,802.87/2,108.20
  6. Step 6: Final answer
    x = 1,752.11

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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.