Home / 5,395.74-8,086.32-3,928.02

Finding the Fourth Proportional to 5,395.74, 8,086.32 and 3,928.02

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Solution

The fourth proportional to 5,395.74, 8,086.32 and 3,928.02 is: 5,886.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,395.74 : 8,086.32 = 3,928.02 : x
  2. Step 2: Convert to fraction form
    5,395.74/8,086.32 = 3,928.02/x
  3. Step 3: Cross multiply
    5,395.74x = 8,086.32 × 3,928.02
  4. Step 4: Simplify right side
    5,395.74x = 31,763,226.69
  5. Step 5: Solve for x
    x = 31,763,226.69/5,395.74
  6. Step 6: Final answer
    x = 5,886.72

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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.