Home / 2,345.75-3,236.79-1,993.09

Finding the Fourth Proportional to 2,345.75, 3,236.79 and 1,993.09

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Solution

The fourth proportional to 2,345.75, 3,236.79 and 1,993.09 is: 2,750.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.75 : 3,236.79 = 1,993.09 : x
  2. Step 2: Convert to fraction form
    2,345.75/3,236.79 = 1,993.09/x
  3. Step 3: Cross multiply
    2,345.75x = 3,236.79 × 1,993.09
  4. Step 4: Simplify right side
    2,345.75x = 6,451,213.78
  5. Step 5: Solve for x
    x = 6,451,213.78/2,345.75
  6. Step 6: Final answer
    x = 2,750.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.