Home / 3,867.36-5,336.91-2,165.84

Finding the Fourth Proportional to 3,867.36, 5,336.91 and 2,165.84

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Solution

The fourth proportional to 3,867.36, 5,336.91 and 2,165.84 is: 2,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.36 : 5,336.91 = 2,165.84 : x
  2. Step 2: Convert to fraction form
    3,867.36/5,336.91 = 2,165.84/x
  3. Step 3: Cross multiply
    3,867.36x = 5,336.91 × 2,165.84
  4. Step 4: Simplify right side
    3,867.36x = 11,558,866.47
  5. Step 5: Solve for x
    x = 11,558,866.47/3,867.36
  6. Step 6: Final answer
    x = 2,988.83

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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.