Home / 2,092.23-3,135.63-858.21

Finding the Fourth Proportional to 2,092.23, 3,135.63 and 858.21

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Solution

The fourth proportional to 2,092.23, 3,135.63 and 858.21 is: 1,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.23 : 3,135.63 = 858.21 : x
  2. Step 2: Convert to fraction form
    2,092.23/3,135.63 = 858.21/x
  3. Step 3: Cross multiply
    2,092.23x = 3,135.63 × 858.21
  4. Step 4: Simplify right side
    2,092.23x = 2,691,029.02
  5. Step 5: Solve for x
    x = 2,691,029.02/2,092.23
  6. Step 6: Final answer
    x = 1,286.20

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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.