Home / 3,883.28-5,349.52-2,886.84

Finding the Fourth Proportional to 3,883.28, 5,349.52 and 2,886.84

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Solution

The fourth proportional to 3,883.28, 5,349.52 and 2,886.84 is: 3,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.28 : 5,349.52 = 2,886.84 : x
  2. Step 2: Convert to fraction form
    3,883.28/5,349.52 = 2,886.84/x
  3. Step 3: Cross multiply
    3,883.28x = 5,349.52 × 2,886.84
  4. Step 4: Simplify right side
    3,883.28x = 15,443,208.32
  5. Step 5: Solve for x
    x = 15,443,208.32/3,883.28
  6. Step 6: Final answer
    x = 3,976.85

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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.