Home / 3,136.60-4,704.11-1,288.23

Finding the Fourth Proportional to 3,136.60, 4,704.11 and 1,288.23

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Solution

The fourth proportional to 3,136.60, 4,704.11 and 1,288.23 is: 1,932.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.60 : 4,704.11 = 1,288.23 : x
  2. Step 2: Convert to fraction form
    3,136.60/4,704.11 = 1,288.23/x
  3. Step 3: Cross multiply
    3,136.60x = 4,704.11 × 1,288.23
  4. Step 4: Simplify right side
    3,136.60x = 6,059,963.62
  5. Step 5: Solve for x
    x = 6,059,963.62/3,136.60
  6. Step 6: Final answer
    x = 1,932.02

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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.