Home / 2,391.11-3,299.09-1,396.63

Finding the Fourth Proportional to 2,391.11, 3,299.09 and 1,396.63

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Solution

The fourth proportional to 2,391.11, 3,299.09 and 1,396.63 is: 1,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.11 : 3,299.09 = 1,396.63 : x
  2. Step 2: Convert to fraction form
    2,391.11/3,299.09 = 1,396.63/x
  3. Step 3: Cross multiply
    2,391.11x = 3,299.09 × 1,396.63
  4. Step 4: Simplify right side
    2,391.11x = 4,607,608.07
  5. Step 5: Solve for x
    x = 4,607,608.07/2,391.11
  6. Step 6: Final answer
    x = 1,926.97

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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.