Home / 3,886.60-5,364.26-2,208.07

Finding the Fourth Proportional to 3,886.60, 5,364.26 and 2,208.07

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Solution

The fourth proportional to 3,886.60, 5,364.26 and 2,208.07 is: 3,047.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.60 : 5,364.26 = 2,208.07 : x
  2. Step 2: Convert to fraction form
    3,886.60/5,364.26 = 2,208.07/x
  3. Step 3: Cross multiply
    3,886.60x = 5,364.26 × 2,208.07
  4. Step 4: Simplify right side
    3,886.60x = 11,844,661.58
  5. Step 5: Solve for x
    x = 11,844,661.58/3,886.60
  6. Step 6: Final answer
    x = 3,047.56

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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.