Home / 7,194.80-10,787.88-2,578.16

Finding the Fourth Proportional to 7,194.80, 10,787.88 and 2,578.16

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Solution

The fourth proportional to 7,194.80, 10,787.88 and 2,578.16 is: 3,865.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.80 : 10,787.88 = 2,578.16 : x
  2. Step 2: Convert to fraction form
    7,194.80/10,787.88 = 2,578.16/x
  3. Step 3: Cross multiply
    7,194.80x = 10,787.88 × 2,578.16
  4. Step 4: Simplify right side
    7,194.80x = 27,812,880.70
  5. Step 5: Solve for x
    x = 27,812,880.70/7,194.80
  6. Step 6: Final answer
    x = 3,865.69

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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.