Home / 3,817.35-5,725.47-1,318.95

Finding the Fourth Proportional to 3,817.35, 5,725.47 and 1,318.95

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Solution

The fourth proportional to 3,817.35, 5,725.47 and 1,318.95 is: 1,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.35 : 5,725.47 = 1,318.95 : x
  2. Step 2: Convert to fraction form
    3,817.35/5,725.47 = 1,318.95/x
  3. Step 3: Cross multiply
    3,817.35x = 5,725.47 × 1,318.95
  4. Step 4: Simplify right side
    3,817.35x = 7,551,608.66
  5. Step 5: Solve for x
    x = 7,551,608.66/3,817.35
  6. Step 6: Final answer
    x = 1,978.23

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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.