Home / 3,689.21-5,522.88-2,223.92

Finding the Fourth Proportional to 3,689.21, 5,522.88 and 2,223.92

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Solution

The fourth proportional to 3,689.21, 5,522.88 and 2,223.92 is: 3,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.21 : 5,522.88 = 2,223.92 : x
  2. Step 2: Convert to fraction form
    3,689.21/5,522.88 = 2,223.92/x
  3. Step 3: Cross multiply
    3,689.21x = 5,522.88 × 2,223.92
  4. Step 4: Simplify right side
    3,689.21x = 12,282,443.29
  5. Step 5: Solve for x
    x = 12,282,443.29/3,689.21
  6. Step 6: Final answer
    x = 3,329.29

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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.