Home / 3,136.87-4,327.35-2,639.33

Finding the Fourth Proportional to 3,136.87, 4,327.35 and 2,639.33

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Solution

The fourth proportional to 3,136.87, 4,327.35 and 2,639.33 is: 3,640.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.87 : 4,327.35 = 2,639.33 : x
  2. Step 2: Convert to fraction form
    3,136.87/4,327.35 = 2,639.33/x
  3. Step 3: Cross multiply
    3,136.87x = 4,327.35 × 2,639.33
  4. Step 4: Simplify right side
    3,136.87x = 11,421,304.68
  5. Step 5: Solve for x
    x = 11,421,304.68/3,136.87
  6. Step 6: Final answer
    x = 3,640.99

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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.