Home / 3,858.70-5,324.69-2,180.25

Finding the Fourth Proportional to 3,858.70, 5,324.69 and 2,180.25

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Solution

The fourth proportional to 3,858.70, 5,324.69 and 2,180.25 is: 3,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.70 : 5,324.69 = 2,180.25 : x
  2. Step 2: Convert to fraction form
    3,858.70/5,324.69 = 2,180.25/x
  3. Step 3: Cross multiply
    3,858.70x = 5,324.69 × 2,180.25
  4. Step 4: Simplify right side
    3,858.70x = 11,609,148.56
  5. Step 5: Solve for x
    x = 11,609,148.56/3,858.70
  6. Step 6: Final answer
    x = 3,008.57

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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.