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Finding the Fourth Proportional to 3,726.56, 5,133.48 and 3,136.88

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Solution

The fourth proportional to 3,726.56, 5,133.48 and 3,136.88 is: 4,321.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.56 : 5,133.48 = 3,136.88 : x
  2. Step 2: Convert to fraction form
    3,726.56/5,133.48 = 3,136.88/x
  3. Step 3: Cross multiply
    3,726.56x = 5,133.48 × 3,136.88
  4. Step 4: Simplify right side
    3,726.56x = 16,103,110.74
  5. Step 5: Solve for x
    x = 16,103,110.74/3,726.56
  6. Step 6: Final answer
    x = 4,321.17

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1.5x scale

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.