Home / 2,630.94-3,943.65-1,171.11

Finding the Fourth Proportional to 2,630.94, 3,943.65 and 1,171.11

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Solution

The fourth proportional to 2,630.94, 3,943.65 and 1,171.11 is: 1,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.94 : 3,943.65 = 1,171.11 : x
  2. Step 2: Convert to fraction form
    2,630.94/3,943.65 = 1,171.11/x
  3. Step 3: Cross multiply
    2,630.94x = 3,943.65 × 1,171.11
  4. Step 4: Simplify right side
    2,630.94x = 4,618,447.95
  5. Step 5: Solve for x
    x = 4,618,447.95/2,630.94
  6. Step 6: Final answer
    x = 1,755.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.