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Finding the Fourth Proportional to 3,888.94, 5,825.28 and 3,778.18

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Solution

The fourth proportional to 3,888.94, 5,825.28 and 3,778.18 is: 5,659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.94 : 5,825.28 = 3,778.18 : x
  2. Step 2: Convert to fraction form
    3,888.94/5,825.28 = 3,778.18/x
  3. Step 3: Cross multiply
    3,888.94x = 5,825.28 × 3,778.18
  4. Step 4: Simplify right side
    3,888.94x = 22,008,956.39
  5. Step 5: Solve for x
    x = 22,008,956.39/3,888.94
  6. Step 6: Final answer
    x = 5,659.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.