Home / 5,181.26-7,146.99-3,315.02

Finding the Fourth Proportional to 5,181.26, 7,146.99 and 3,315.02

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Solution

The fourth proportional to 5,181.26, 7,146.99 and 3,315.02 is: 4,572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.26 : 7,146.99 = 3,315.02 : x
  2. Step 2: Convert to fraction form
    5,181.26/7,146.99 = 3,315.02/x
  3. Step 3: Cross multiply
    5,181.26x = 7,146.99 × 3,315.02
  4. Step 4: Simplify right side
    5,181.26x = 23,692,414.79
  5. Step 5: Solve for x
    x = 23,692,414.79/5,181.26
  6. Step 6: Final answer
    x = 4,572.71

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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.