Home / 2,136.20-3,200.45-2,007.54

Finding the Fourth Proportional to 2,136.20, 3,200.45 and 2,007.54

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Solution

The fourth proportional to 2,136.20, 3,200.45 and 2,007.54 is: 3,007.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.20 : 3,200.45 = 2,007.54 : x
  2. Step 2: Convert to fraction form
    2,136.20/3,200.45 = 2,007.54/x
  3. Step 3: Cross multiply
    2,136.20x = 3,200.45 × 2,007.54
  4. Step 4: Simplify right side
    2,136.20x = 6,425,036.41
  5. Step 5: Solve for x
    x = 6,425,036.41/2,136.20
  6. Step 6: Final answer
    x = 3,007.69

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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.