Home / 3,412.44-5,118.94-1,438.64

Finding the Fourth Proportional to 3,412.44, 5,118.94 and 1,438.64

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Solution

The fourth proportional to 3,412.44, 5,118.94 and 1,438.64 is: 2,158.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.44 : 5,118.94 = 1,438.64 : x
  2. Step 2: Convert to fraction form
    3,412.44/5,118.94 = 1,438.64/x
  3. Step 3: Cross multiply
    3,412.44x = 5,118.94 × 1,438.64
  4. Step 4: Simplify right side
    3,412.44x = 7,364,311.84
  5. Step 5: Solve for x
    x = 7,364,311.84/3,412.44
  6. Step 6: Final answer
    x = 2,158.08

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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.