Home / 3,205.15-4,423.95-2,261.22

Finding the Fourth Proportional to 3,205.15, 4,423.95 and 2,261.22

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Solution

The fourth proportional to 3,205.15, 4,423.95 and 2,261.22 is: 3,121.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.15 : 4,423.95 = 2,261.22 : x
  2. Step 2: Convert to fraction form
    3,205.15/4,423.95 = 2,261.22/x
  3. Step 3: Cross multiply
    3,205.15x = 4,423.95 × 2,261.22
  4. Step 4: Simplify right side
    3,205.15x = 10,003,524.22
  5. Step 5: Solve for x
    x = 10,003,524.22/3,205.15
  6. Step 6: Final answer
    x = 3,121.08

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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.