Home / 3,174.16-4,381.52-1,915.27

Finding the Fourth Proportional to 3,174.16, 4,381.52 and 1,915.27

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Solution

The fourth proportional to 3,174.16, 4,381.52 and 1,915.27 is: 2,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.16 : 4,381.52 = 1,915.27 : x
  2. Step 2: Convert to fraction form
    3,174.16/4,381.52 = 1,915.27/x
  3. Step 3: Cross multiply
    3,174.16x = 4,381.52 × 1,915.27
  4. Step 4: Simplify right side
    3,174.16x = 8,391,790.99
  5. Step 5: Solve for x
    x = 8,391,790.99/3,174.16
  6. Step 6: Final answer
    x = 2,643.78

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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.