Home / 3,122.39-4,687.67-2,089.04

Finding the Fourth Proportional to 3,122.39, 4,687.67 and 2,089.04

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Solution

The fourth proportional to 3,122.39, 4,687.67 and 2,089.04 is: 3,136.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.39 : 4,687.67 = 2,089.04 : x
  2. Step 2: Convert to fraction form
    3,122.39/4,687.67 = 2,089.04/x
  3. Step 3: Cross multiply
    3,122.39x = 4,687.67 × 2,089.04
  4. Step 4: Simplify right side
    3,122.39x = 9,792,711.92
  5. Step 5: Solve for x
    x = 9,792,711.92/3,122.39
  6. Step 6: Final answer
    x = 3,136.28

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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.