Home / 3,828.06-5,284.17-2,886.57

Finding the Fourth Proportional to 3,828.06, 5,284.17 and 2,886.57

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Solution

The fourth proportional to 3,828.06, 5,284.17 and 2,886.57 is: 3,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.06 : 5,284.17 = 2,886.57 : x
  2. Step 2: Convert to fraction form
    3,828.06/5,284.17 = 2,886.57/x
  3. Step 3: Cross multiply
    3,828.06x = 5,284.17 × 2,886.57
  4. Step 4: Simplify right side
    3,828.06x = 15,253,126.60
  5. Step 5: Solve for x
    x = 15,253,126.60/3,828.06
  6. Step 6: Final answer
    x = 3,984.56

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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.