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Finding the Fourth Proportional to 6,753.78, 10,130.60 and 2,136.78

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Solution

The fourth proportional to 6,753.78, 10,130.60 and 2,136.78 is: 3,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,753.78 : 10,130.60 = 2,136.78 : x
  2. Step 2: Convert to fraction form
    6,753.78/10,130.60 = 2,136.78/x
  3. Step 3: Cross multiply
    6,753.78x = 10,130.60 × 2,136.78
  4. Step 4: Simplify right side
    6,753.78x = 21,646,863.47
  5. Step 5: Solve for x
    x = 21,646,863.47/6,753.78
  6. Step 6: Final answer
    x = 3,205.15

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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.