Home / 5,186.82-7,157.90-2,829.04

Finding the Fourth Proportional to 5,186.82, 7,157.90 and 2,829.04

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Solution

The fourth proportional to 5,186.82, 7,157.90 and 2,829.04 is: 3,904.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.82 : 7,157.90 = 2,829.04 : x
  2. Step 2: Convert to fraction form
    5,186.82/7,157.90 = 2,829.04/x
  3. Step 3: Cross multiply
    5,186.82x = 7,157.90 × 2,829.04
  4. Step 4: Simplify right side
    5,186.82x = 20,249,985.42
  5. Step 5: Solve for x
    x = 20,249,985.42/5,186.82
  6. Step 6: Final answer
    x = 3,904.12

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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.