Home / 3,686.72-5,521.57-2,222.64

Finding the Fourth Proportional to 3,686.72, 5,521.57 and 2,222.64

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Solution

The fourth proportional to 3,686.72, 5,521.57 and 2,222.64 is: 3,328.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.72 : 5,521.57 = 2,222.64 : x
  2. Step 2: Convert to fraction form
    3,686.72/5,521.57 = 2,222.64/x
  3. Step 3: Cross multiply
    3,686.72x = 5,521.57 × 2,222.64
  4. Step 4: Simplify right side
    3,686.72x = 12,272,456.79
  5. Step 5: Solve for x
    x = 12,272,456.79/3,686.72
  6. Step 6: Final answer
    x = 3,328.83

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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.