Home / 2,845.88-3,926.22-2,101.62

Finding the Fourth Proportional to 2,845.88, 3,926.22 and 2,101.62

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Solution

The fourth proportional to 2,845.88, 3,926.22 and 2,101.62 is: 2,899.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.88 : 3,926.22 = 2,101.62 : x
  2. Step 2: Convert to fraction form
    2,845.88/3,926.22 = 2,101.62/x
  3. Step 3: Cross multiply
    2,845.88x = 3,926.22 × 2,101.62
  4. Step 4: Simplify right side
    2,845.88x = 8,251,422.48
  5. Step 5: Solve for x
    x = 8,251,422.48/2,845.88
  6. Step 6: Final answer
    x = 2,899.43

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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.