Home / 2,620.49-3,928.33-2,392.22

Finding the Fourth Proportional to 2,620.49, 3,928.33 and 2,392.22

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Solution

The fourth proportional to 2,620.49, 3,928.33 and 2,392.22 is: 3,586.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.49 : 3,928.33 = 2,392.22 : x
  2. Step 2: Convert to fraction form
    2,620.49/3,928.33 = 2,392.22/x
  3. Step 3: Cross multiply
    2,620.49x = 3,928.33 × 2,392.22
  4. Step 4: Simplify right side
    2,620.49x = 9,397,429.59
  5. Step 5: Solve for x
    x = 9,397,429.59/2,620.49
  6. Step 6: Final answer
    x = 3,586.13

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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.