Home / 3,685.77-5,522.54-2,221.92

Finding the Fourth Proportional to 3,685.77, 5,522.54 and 2,221.92

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Solution

The fourth proportional to 3,685.77, 5,522.54 and 2,221.92 is: 3,329.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.77 : 5,522.54 = 2,221.92 : x
  2. Step 2: Convert to fraction form
    3,685.77/5,522.54 = 2,221.92/x
  3. Step 3: Cross multiply
    3,685.77x = 5,522.54 × 2,221.92
  4. Step 4: Simplify right side
    3,685.77x = 12,270,630.97
  5. Step 5: Solve for x
    x = 12,270,630.97/3,685.77
  6. Step 6: Final answer
    x = 3,329.19

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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.