Home / 3,723.70-5,136.60-2,151.52

Finding the Fourth Proportional to 3,723.70, 5,136.60 and 2,151.52

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Solution

The fourth proportional to 3,723.70, 5,136.60 and 2,151.52 is: 2,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.70 : 5,136.60 = 2,151.52 : x
  2. Step 2: Convert to fraction form
    3,723.70/5,136.60 = 2,151.52/x
  3. Step 3: Cross multiply
    3,723.70x = 5,136.60 × 2,151.52
  4. Step 4: Simplify right side
    3,723.70x = 11,051,497.63
  5. Step 5: Solve for x
    x = 11,051,497.63/3,723.70
  6. Step 6: Final answer
    x = 2,967.88

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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.