Home / 3,910.71-5,394.98-2,253.75

Finding the Fourth Proportional to 3,910.71, 5,394.98 and 2,253.75

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Solution

The fourth proportional to 3,910.71, 5,394.98 and 2,253.75 is: 3,109.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.71 : 5,394.98 = 2,253.75 : x
  2. Step 2: Convert to fraction form
    3,910.71/5,394.98 = 2,253.75/x
  3. Step 3: Cross multiply
    3,910.71x = 5,394.98 × 2,253.75
  4. Step 4: Simplify right side
    3,910.71x = 12,158,924.91
  5. Step 5: Solve for x
    x = 12,158,924.91/3,910.71
  6. Step 6: Final answer
    x = 3,109.13

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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.