Home / 3,201.06-4,801.18-861.26

Finding the Fourth Proportional to 3,201.06, 4,801.18 and 861.26

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Solution

The fourth proportional to 3,201.06, 4,801.18 and 861.26 is: 1,291.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.06 : 4,801.18 = 861.26 : x
  2. Step 2: Convert to fraction form
    3,201.06/4,801.18 = 861.26/x
  3. Step 3: Cross multiply
    3,201.06x = 4,801.18 × 861.26
  4. Step 4: Simplify right side
    3,201.06x = 4,135,064.29
  5. Step 5: Solve for x
    x = 4,135,064.29/3,201.06
  6. Step 6: Final answer
    x = 1,291.78

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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.