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Finding the Fourth Proportional to 6,957.72, 10,440.72 and 2,578.23

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Solution

The fourth proportional to 6,957.72, 10,440.72 and 2,578.23 is: 3,868.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,957.72 : 10,440.72 = 2,578.23 : x
  2. Step 2: Convert to fraction form
    6,957.72/10,440.72 = 2,578.23/x
  3. Step 3: Cross multiply
    6,957.72x = 10,440.72 × 2,578.23
  4. Step 4: Simplify right side
    6,957.72x = 26,918,577.53
  5. Step 5: Solve for x
    x = 26,918,577.53/6,957.72
  6. Step 6: Final answer
    x = 3,868.88

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1.5x scale

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.