Home / 3,722.64-5,136.15-2,660.73

Finding the Fourth Proportional to 3,722.64, 5,136.15 and 2,660.73

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Solution

The fourth proportional to 3,722.64, 5,136.15 and 2,660.73 is: 3,671.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.64 : 5,136.15 = 2,660.73 : x
  2. Step 2: Convert to fraction form
    3,722.64/5,136.15 = 2,660.73/x
  3. Step 3: Cross multiply
    3,722.64x = 5,136.15 × 2,660.73
  4. Step 4: Simplify right side
    3,722.64x = 13,665,908.39
  5. Step 5: Solve for x
    x = 13,665,908.39/3,722.64
  6. Step 6: Final answer
    x = 3,671.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.