Home / 2,107.35-3,162.11-1,489.73

Finding the Fourth Proportional to 2,107.35, 3,162.11 and 1,489.73

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Solution

The fourth proportional to 2,107.35, 3,162.11 and 1,489.73 is: 2,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.35 : 3,162.11 = 1,489.73 : x
  2. Step 2: Convert to fraction form
    2,107.35/3,162.11 = 1,489.73/x
  3. Step 3: Cross multiply
    2,107.35x = 3,162.11 × 1,489.73
  4. Step 4: Simplify right side
    2,107.35x = 4,710,666.87
  5. Step 5: Solve for x
    x = 4,710,666.87/2,107.35
  6. Step 6: Final answer
    x = 2,235.35

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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.