Home / 3,820.57-5,272.29-2,141.84

Finding the Fourth Proportional to 3,820.57, 5,272.29 and 2,141.84

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Solution

The fourth proportional to 3,820.57, 5,272.29 and 2,141.84 is: 2,955.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.57 : 5,272.29 = 2,141.84 : x
  2. Step 2: Convert to fraction form
    3,820.57/5,272.29 = 2,141.84/x
  3. Step 3: Cross multiply
    3,820.57x = 5,272.29 × 2,141.84
  4. Step 4: Simplify right side
    3,820.57x = 11,292,414.79
  5. Step 5: Solve for x
    x = 11,292,414.79/3,820.57
  6. Step 6: Final answer
    x = 2,955.69

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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.