Home / 3,851.92-5,315.25-2,173.42

Finding the Fourth Proportional to 3,851.92, 5,315.25 and 2,173.42

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Solution

The fourth proportional to 3,851.92, 5,315.25 and 2,173.42 is: 2,999.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.92 : 5,315.25 = 2,173.42 : x
  2. Step 2: Convert to fraction form
    3,851.92/5,315.25 = 2,173.42/x
  3. Step 3: Cross multiply
    3,851.92x = 5,315.25 × 2,173.42
  4. Step 4: Simplify right side
    3,851.92x = 11,552,270.66
  5. Step 5: Solve for x
    x = 11,552,270.66/3,851.92
  6. Step 6: Final answer
    x = 2,999.09

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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.