Home / 5,257.14-7,880.82-1,972.41

Finding the Fourth Proportional to 5,257.14, 7,880.82 and 1,972.41

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Solution

The fourth proportional to 5,257.14, 7,880.82 and 1,972.41 is: 2,956.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.14 : 7,880.82 = 1,972.41 : x
  2. Step 2: Convert to fraction form
    5,257.14/7,880.82 = 1,972.41/x
  3. Step 3: Cross multiply
    5,257.14x = 7,880.82 × 1,972.41
  4. Step 4: Simplify right side
    5,257.14x = 15,544,208.18
  5. Step 5: Solve for x
    x = 15,544,208.18/5,257.14
  6. Step 6: Final answer
    x = 2,956.78

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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.