Home / 7,880.78-11,821.38-2,037.38

Finding the Fourth Proportional to 7,880.78, 11,821.38 and 2,037.38

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Solution

The fourth proportional to 7,880.78, 11,821.38 and 2,037.38 is: 3,056.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.78 : 11,821.38 = 2,037.38 : x
  2. Step 2: Convert to fraction form
    7,880.78/11,821.38 = 2,037.38/x
  3. Step 3: Cross multiply
    7,880.78x = 11,821.38 × 2,037.38
  4. Step 4: Simplify right side
    7,880.78x = 24,084,584.08
  5. Step 5: Solve for x
    x = 24,084,584.08/7,880.78
  6. Step 6: Final answer
    x = 3,056.12

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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.