Home / 3,858.88-5,325.20-2,180.26

Finding the Fourth Proportional to 3,858.88, 5,325.20 and 2,180.26

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Solution

The fourth proportional to 3,858.88, 5,325.20 and 2,180.26 is: 3,008.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.88 : 5,325.20 = 2,180.26 : x
  2. Step 2: Convert to fraction form
    3,858.88/5,325.20 = 2,180.26/x
  3. Step 3: Cross multiply
    3,858.88x = 5,325.20 × 2,180.26
  4. Step 4: Simplify right side
    3,858.88x = 11,610,293.93
  5. Step 5: Solve for x
    x = 11,610,293.93/3,858.88
  6. Step 6: Final answer
    x = 3,008.72

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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.