Home / 2,872.05-4,311.11-1,412.22

Finding the Fourth Proportional to 2,872.05, 4,311.11 and 1,412.22

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Solution

The fourth proportional to 2,872.05, 4,311.11 and 1,412.22 is: 2,119.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.05 : 4,311.11 = 1,412.22 : x
  2. Step 2: Convert to fraction form
    2,872.05/4,311.11 = 1,412.22/x
  3. Step 3: Cross multiply
    2,872.05x = 4,311.11 × 1,412.22
  4. Step 4: Simplify right side
    2,872.05x = 6,088,235.76
  5. Step 5: Solve for x
    x = 6,088,235.76/2,872.05
  6. Step 6: Final answer
    x = 2,119.82

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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.