Home / 5,425.13-8,131.54-2,134.38

Finding the Fourth Proportional to 5,425.13, 8,131.54 and 2,134.38

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Solution

The fourth proportional to 5,425.13, 8,131.54 and 2,134.38 is: 3,199.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.13 : 8,131.54 = 2,134.38 : x
  2. Step 2: Convert to fraction form
    5,425.13/8,131.54 = 2,134.38/x
  3. Step 3: Cross multiply
    5,425.13x = 8,131.54 × 2,134.38
  4. Step 4: Simplify right side
    5,425.13x = 17,355,756.89
  5. Step 5: Solve for x
    x = 17,355,756.89/5,425.13
  6. Step 6: Final answer
    x = 3,199.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.