Home / 3,318.39-4,975.28-2,381.91

Finding the Fourth Proportional to 3,318.39, 4,975.28 and 2,381.91

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Solution

The fourth proportional to 3,318.39, 4,975.28 and 2,381.91 is: 3,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.39 : 4,975.28 = 2,381.91 : x
  2. Step 2: Convert to fraction form
    3,318.39/4,975.28 = 2,381.91/x
  3. Step 3: Cross multiply
    3,318.39x = 4,975.28 × 2,381.91
  4. Step 4: Simplify right side
    3,318.39x = 11,850,657.28
  5. Step 5: Solve for x
    x = 11,850,657.28/3,318.39
  6. Step 6: Final answer
    x = 3,571.21

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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.