Home / 2,626.80-3,942.61-1,329.18

Finding the Fourth Proportional to 2,626.80, 3,942.61 and 1,329.18

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Solution

The fourth proportional to 2,626.80, 3,942.61 and 1,329.18 is: 1,994.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.80 : 3,942.61 = 1,329.18 : x
  2. Step 2: Convert to fraction form
    2,626.80/3,942.61 = 1,329.18/x
  3. Step 3: Cross multiply
    2,626.80x = 3,942.61 × 1,329.18
  4. Step 4: Simplify right side
    2,626.80x = 5,240,438.36
  5. Step 5: Solve for x
    x = 5,240,438.36/2,626.80
  6. Step 6: Final answer
    x = 1,994.99

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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.