Home / 2,239.94-3,361.28-1,317.30

Finding the Fourth Proportional to 2,239.94, 3,361.28 and 1,317.30

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Solution

The fourth proportional to 2,239.94, 3,361.28 and 1,317.30 is: 1,976.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.94 : 3,361.28 = 1,317.30 : x
  2. Step 2: Convert to fraction form
    2,239.94/3,361.28 = 1,317.30/x
  3. Step 3: Cross multiply
    2,239.94x = 3,361.28 × 1,317.30
  4. Step 4: Simplify right side
    2,239.94x = 4,427,814.14
  5. Step 5: Solve for x
    x = 4,427,814.14/2,239.94
  6. Step 6: Final answer
    x = 1,976.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.