Home / 3,860.01-5,785.11-3,218.49

Finding the Fourth Proportional to 3,860.01, 5,785.11 and 3,218.49

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Solution

The fourth proportional to 3,860.01, 5,785.11 and 3,218.49 is: 4,823.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.01 : 5,785.11 = 3,218.49 : x
  2. Step 2: Convert to fraction form
    3,860.01/5,785.11 = 3,218.49/x
  3. Step 3: Cross multiply
    3,860.01x = 5,785.11 × 3,218.49
  4. Step 4: Simplify right side
    3,860.01x = 18,619,318.68
  5. Step 5: Solve for x
    x = 18,619,318.68/3,860.01
  6. Step 6: Final answer
    x = 4,823.65

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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.