Home / 3,086.16-4,259.69-1,906.55

Finding the Fourth Proportional to 3,086.16, 4,259.69 and 1,906.55

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Solution

The fourth proportional to 3,086.16, 4,259.69 and 1,906.55 is: 2,631.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.16 : 4,259.69 = 1,906.55 : x
  2. Step 2: Convert to fraction form
    3,086.16/4,259.69 = 1,906.55/x
  3. Step 3: Cross multiply
    3,086.16x = 4,259.69 × 1,906.55
  4. Step 4: Simplify right side
    3,086.16x = 8,121,311.97
  5. Step 5: Solve for x
    x = 8,121,311.97/3,086.16
  6. Step 6: Final answer
    x = 2,631.53

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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.