Home / 2,391.14-3,299.93-1,396.05

Finding the Fourth Proportional to 2,391.14, 3,299.93 and 1,396.05

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Solution

The fourth proportional to 2,391.14, 3,299.93 and 1,396.05 is: 1,926.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.14 : 3,299.93 = 1,396.05 : x
  2. Step 2: Convert to fraction form
    2,391.14/3,299.93 = 1,396.05/x
  3. Step 3: Cross multiply
    2,391.14x = 3,299.93 × 1,396.05
  4. Step 4: Simplify right side
    2,391.14x = 4,606,860.30
  5. Step 5: Solve for x
    x = 4,606,860.30/2,391.14
  6. Step 6: Final answer
    x = 1,926.64

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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.