Home / 3,174.52-4,380.87-1,915.33

Finding the Fourth Proportional to 3,174.52, 4,380.87 and 1,915.33

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Solution

The fourth proportional to 3,174.52, 4,380.87 and 1,915.33 is: 2,643.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.52 : 4,380.87 = 1,915.33 : x
  2. Step 2: Convert to fraction form
    3,174.52/4,380.87 = 1,915.33/x
  3. Step 3: Cross multiply
    3,174.52x = 4,380.87 × 1,915.33
  4. Step 4: Simplify right side
    3,174.52x = 8,390,825.39
  5. Step 5: Solve for x
    x = 8,390,825.39/3,174.52
  6. Step 6: Final answer
    x = 2,643.18

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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.