Home / 2,288.96-3,433.85-830.15

Finding the Fourth Proportional to 2,288.96, 3,433.85 and 830.15

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Solution

The fourth proportional to 2,288.96, 3,433.85 and 830.15 is: 1,245.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.96 : 3,433.85 = 830.15 : x
  2. Step 2: Convert to fraction form
    2,288.96/3,433.85 = 830.15/x
  3. Step 3: Cross multiply
    2,288.96x = 3,433.85 × 830.15
  4. Step 4: Simplify right side
    2,288.96x = 2,850,610.58
  5. Step 5: Solve for x
    x = 2,850,610.58/2,288.96
  6. Step 6: Final answer
    x = 1,245.37

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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.