Home / 4,122.18-5,686.20-3,843.54

Finding the Fourth Proportional to 4,122.18, 5,686.20 and 3,843.54

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Solution

The fourth proportional to 4,122.18, 5,686.20 and 3,843.54 is: 5,301.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.18 : 5,686.20 = 3,843.54 : x
  2. Step 2: Convert to fraction form
    4,122.18/5,686.20 = 3,843.54/x
  3. Step 3: Cross multiply
    4,122.18x = 5,686.20 × 3,843.54
  4. Step 4: Simplify right side
    4,122.18x = 21,855,137.15
  5. Step 5: Solve for x
    x = 21,855,137.15/4,122.18
  6. Step 6: Final answer
    x = 5,301.84

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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.