Home / 3,205.38-4,421.72-2,208.94

Finding the Fourth Proportional to 3,205.38, 4,421.72 and 2,208.94

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Solution

The fourth proportional to 3,205.38, 4,421.72 and 2,208.94 is: 3,047.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.38 : 4,421.72 = 2,208.94 : x
  2. Step 2: Convert to fraction form
    3,205.38/4,421.72 = 2,208.94/x
  3. Step 3: Cross multiply
    3,205.38x = 4,421.72 × 2,208.94
  4. Step 4: Simplify right side
    3,205.38x = 9,767,314.18
  5. Step 5: Solve for x
    x = 9,767,314.18/3,205.38
  6. Step 6: Final answer
    x = 3,047.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.