Home / 3,426.21-5,136.08-1,479.78

Finding the Fourth Proportional to 3,426.21, 5,136.08 and 1,479.78

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Solution

The fourth proportional to 3,426.21, 5,136.08 and 1,479.78 is: 2,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.21 : 5,136.08 = 1,479.78 : x
  2. Step 2: Convert to fraction form
    3,426.21/5,136.08 = 1,479.78/x
  3. Step 3: Cross multiply
    3,426.21x = 5,136.08 × 1,479.78
  4. Step 4: Simplify right side
    3,426.21x = 7,600,261.06
  5. Step 5: Solve for x
    x = 7,600,261.06/3,426.21
  6. Step 6: Final answer
    x = 2,218.27

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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.