Home / 2,313.15-3,447.73-2,181.78

Finding the Fourth Proportional to 2,313.15, 3,447.73 and 2,181.78

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Solution

The fourth proportional to 2,313.15, 3,447.73 and 2,181.78 is: 3,251.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.15 : 3,447.73 = 2,181.78 : x
  2. Step 2: Convert to fraction form
    2,313.15/3,447.73 = 2,181.78/x
  3. Step 3: Cross multiply
    2,313.15x = 3,447.73 × 2,181.78
  4. Step 4: Simplify right side
    2,313.15x = 7,522,195.83
  5. Step 5: Solve for x
    x = 7,522,195.83/2,313.15
  6. Step 6: Final answer
    x = 3,251.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.