Home / 3,865.27-5,332.80-2,186.50

Finding the Fourth Proportional to 3,865.27, 5,332.80 and 2,186.50

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Solution

The fourth proportional to 3,865.27, 5,332.80 and 2,186.50 is: 3,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.27 : 5,332.80 = 2,186.50 : x
  2. Step 2: Convert to fraction form
    3,865.27/5,332.80 = 2,186.50/x
  3. Step 3: Cross multiply
    3,865.27x = 5,332.80 × 2,186.50
  4. Step 4: Simplify right side
    3,865.27x = 11,660,167.20
  5. Step 5: Solve for x
    x = 11,660,167.20/3,865.27
  6. Step 6: Final answer
    x = 3,016.65

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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.