Home / 3,669.21-5,502.16-2,189.12

Finding the Fourth Proportional to 3,669.21, 5,502.16 and 2,189.12

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Solution

The fourth proportional to 3,669.21, 5,502.16 and 2,189.12 is: 3,282.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.21 : 5,502.16 = 2,189.12 : x
  2. Step 2: Convert to fraction form
    3,669.21/5,502.16 = 2,189.12/x
  3. Step 3: Cross multiply
    3,669.21x = 5,502.16 × 2,189.12
  4. Step 4: Simplify right side
    3,669.21x = 12,044,863.72
  5. Step 5: Solve for x
    x = 12,044,863.72/3,669.21
  6. Step 6: Final answer
    x = 3,282.69

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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.