Home / 2,965.28-4,447.20-2,136.80

Finding the Fourth Proportional to 2,965.28, 4,447.20 and 2,136.80

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Solution

The fourth proportional to 2,965.28, 4,447.20 and 2,136.80 is: 3,204.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.28 : 4,447.20 = 2,136.80 : x
  2. Step 2: Convert to fraction form
    2,965.28/4,447.20 = 2,136.80/x
  3. Step 3: Cross multiply
    2,965.28x = 4,447.20 × 2,136.80
  4. Step 4: Simplify right side
    2,965.28x = 9,502,776.96
  5. Step 5: Solve for x
    x = 9,502,776.96/2,965.28
  6. Step 6: Final answer
    x = 3,204.68

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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.