Home / 2,108.71-2,909.73-1,269.75

Finding the Fourth Proportional to 2,108.71, 2,909.73 and 1,269.75

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Solution

The fourth proportional to 2,108.71, 2,909.73 and 1,269.75 is: 1,752.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.71 : 2,909.73 = 1,269.75 : x
  2. Step 2: Convert to fraction form
    2,108.71/2,909.73 = 1,269.75/x
  3. Step 3: Cross multiply
    2,108.71x = 2,909.73 × 1,269.75
  4. Step 4: Simplify right side
    2,108.71x = 3,694,629.67
  5. Step 5: Solve for x
    x = 3,694,629.67/2,108.71
  6. Step 6: Final answer
    x = 1,752.08

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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.