Home / 3,817.35-5,726.82-1,318.74

Finding the Fourth Proportional to 3,817.35, 5,726.82 and 1,318.74

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Solution

The fourth proportional to 3,817.35, 5,726.82 and 1,318.74 is: 1,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.35 : 5,726.82 = 1,318.74 : x
  2. Step 2: Convert to fraction form
    3,817.35/5,726.82 = 1,318.74/x
  3. Step 3: Cross multiply
    3,817.35x = 5,726.82 × 1,318.74
  4. Step 4: Simplify right side
    3,817.35x = 7,552,186.61
  5. Step 5: Solve for x
    x = 7,552,186.61/3,817.35
  6. Step 6: Final answer
    x = 1,978.38

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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.