Home / 2,230.38-3,346.83-931.86

Finding the Fourth Proportional to 2,230.38, 3,346.83 and 931.86

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Solution

The fourth proportional to 2,230.38, 3,346.83 and 931.86 is: 1,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.38 : 3,346.83 = 931.86 : x
  2. Step 2: Convert to fraction form
    2,230.38/3,346.83 = 931.86/x
  3. Step 3: Cross multiply
    2,230.38x = 3,346.83 × 931.86
  4. Step 4: Simplify right side
    2,230.38x = 3,118,777.00
  5. Step 5: Solve for x
    x = 3,118,777.00/2,230.38
  6. Step 6: Final answer
    x = 1,398.32

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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.