Home / 3,858.12-5,324.22-2,089.71

Finding the Fourth Proportional to 3,858.12, 5,324.22 and 2,089.71

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Solution

The fourth proportional to 3,858.12, 5,324.22 and 2,089.71 is: 2,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.12 : 5,324.22 = 2,089.71 : x
  2. Step 2: Convert to fraction form
    3,858.12/5,324.22 = 2,089.71/x
  3. Step 3: Cross multiply
    3,858.12x = 5,324.22 × 2,089.71
  4. Step 4: Simplify right side
    3,858.12x = 11,126,075.78
  5. Step 5: Solve for x
    x = 11,126,075.78/3,858.12
  6. Step 6: Final answer
    x = 2,883.81

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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.