Home / 3,820.35-5,272.11-2,141.83

Finding the Fourth Proportional to 3,820.35, 5,272.11 and 2,141.83

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Solution

The fourth proportional to 3,820.35, 5,272.11 and 2,141.83 is: 2,955.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.35 : 5,272.11 = 2,141.83 : x
  2. Step 2: Convert to fraction form
    3,820.35/5,272.11 = 2,141.83/x
  3. Step 3: Cross multiply
    3,820.35x = 5,272.11 × 2,141.83
  4. Step 4: Simplify right side
    3,820.35x = 11,291,963.36
  5. Step 5: Solve for x
    x = 11,291,963.36/3,820.35
  6. Step 6: Final answer
    x = 2,955.74

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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.