Home / 3,967.10-5,942.55-1,880.78

Finding the Fourth Proportional to 3,967.10, 5,942.55 and 1,880.78

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Solution

The fourth proportional to 3,967.10, 5,942.55 and 1,880.78 is: 2,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.10 : 5,942.55 = 1,880.78 : x
  2. Step 2: Convert to fraction form
    3,967.10/5,942.55 = 1,880.78/x
  3. Step 3: Cross multiply
    3,967.10x = 5,942.55 × 1,880.78
  4. Step 4: Simplify right side
    3,967.10x = 11,176,599.48
  5. Step 5: Solve for x
    x = 11,176,599.48/3,967.10
  6. Step 6: Final answer
    x = 2,817.33

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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.