Home / 2,091.26-2,885.85-1,251.47

Finding the Fourth Proportional to 2,091.26, 2,885.85 and 1,251.47

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Solution

The fourth proportional to 2,091.26, 2,885.85 and 1,251.47 is: 1,726.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.26 : 2,885.85 = 1,251.47 : x
  2. Step 2: Convert to fraction form
    2,091.26/2,885.85 = 1,251.47/x
  3. Step 3: Cross multiply
    2,091.26x = 2,885.85 × 1,251.47
  4. Step 4: Simplify right side
    2,091.26x = 3,611,554.70
  5. Step 5: Solve for x
    x = 3,611,554.70/2,091.26
  6. Step 6: Final answer
    x = 1,726.98

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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.