Home / 3,862.13-5,331.81-3,021.05

Finding the Fourth Proportional to 3,862.13, 5,331.81 and 3,021.05

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Solution

The fourth proportional to 3,862.13, 5,331.81 and 3,021.05 is: 4,170.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.13 : 5,331.81 = 3,021.05 : x
  2. Step 2: Convert to fraction form
    3,862.13/5,331.81 = 3,021.05/x
  3. Step 3: Cross multiply
    3,862.13x = 5,331.81 × 3,021.05
  4. Step 4: Simplify right side
    3,862.13x = 16,107,642.27
  5. Step 5: Solve for x
    x = 16,107,642.27/3,862.13
  6. Step 6: Final answer
    x = 4,170.66

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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.