Home / 3,684.36-5,084.37-2,005.74

Finding the Fourth Proportional to 3,684.36, 5,084.37 and 2,005.74

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Solution

The fourth proportional to 3,684.36, 5,084.37 and 2,005.74 is: 2,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.36 : 5,084.37 = 2,005.74 : x
  2. Step 2: Convert to fraction form
    3,684.36/5,084.37 = 2,005.74/x
  3. Step 3: Cross multiply
    3,684.36x = 5,084.37 × 2,005.74
  4. Step 4: Simplify right side
    3,684.36x = 10,197,924.28
  5. Step 5: Solve for x
    x = 10,197,924.28/3,684.36
  6. Step 6: Final answer
    x = 2,767.89

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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.