Home / 3,231.81-4,459.78-1,974.97

Finding the Fourth Proportional to 3,231.81, 4,459.78 and 1,974.97

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Solution

The fourth proportional to 3,231.81, 4,459.78 and 1,974.97 is: 2,725.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.81 : 4,459.78 = 1,974.97 : x
  2. Step 2: Convert to fraction form
    3,231.81/4,459.78 = 1,974.97/x
  3. Step 3: Cross multiply
    3,231.81x = 4,459.78 × 1,974.97
  4. Step 4: Simplify right side
    3,231.81x = 8,807,907.58
  5. Step 5: Solve for x
    x = 8,807,907.58/3,231.81
  6. Step 6: Final answer
    x = 2,725.38

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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.