Home / 2,129.37-3,194.18-830.73

Finding the Fourth Proportional to 2,129.37, 3,194.18 and 830.73

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Solution

The fourth proportional to 2,129.37, 3,194.18 and 830.73 is: 1,246.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.37 : 3,194.18 = 830.73 : x
  2. Step 2: Convert to fraction form
    2,129.37/3,194.18 = 830.73/x
  3. Step 3: Cross multiply
    2,129.37x = 3,194.18 × 830.73
  4. Step 4: Simplify right side
    2,129.37x = 2,653,497.00
  5. Step 5: Solve for x
    x = 2,653,497.00/2,129.37
  6. Step 6: Final answer
    x = 1,246.14

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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.