Home / 3,686.11-5,086.76-2,007.55

Finding the Fourth Proportional to 3,686.11, 5,086.76 and 2,007.55

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Solution

The fourth proportional to 3,686.11, 5,086.76 and 2,007.55 is: 2,770.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.11 : 5,086.76 = 2,007.55 : x
  2. Step 2: Convert to fraction form
    3,686.11/5,086.76 = 2,007.55/x
  3. Step 3: Cross multiply
    3,686.11x = 5,086.76 × 2,007.55
  4. Step 4: Simplify right side
    3,686.11x = 10,211,902.28
  5. Step 5: Solve for x
    x = 10,211,902.28/3,686.11
  6. Step 6: Final answer
    x = 2,770.37

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Half scale
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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.