Home / 2,107.15-3,158.16-1,491.03

Finding the Fourth Proportional to 2,107.15, 3,158.16 and 1,491.03

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Solution

The fourth proportional to 2,107.15, 3,158.16 and 1,491.03 is: 2,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.15 : 3,158.16 = 1,491.03 : x
  2. Step 2: Convert to fraction form
    2,107.15/3,158.16 = 1,491.03/x
  3. Step 3: Cross multiply
    2,107.15x = 3,158.16 × 1,491.03
  4. Step 4: Simplify right side
    2,107.15x = 4,708,911.30
  5. Step 5: Solve for x
    x = 4,708,911.30/2,107.15
  6. Step 6: Final answer
    x = 2,234.73

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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.