Home / 5,112.62-7,655.25-2,918.33

Finding the Fourth Proportional to 5,112.62, 7,655.25 and 2,918.33

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Solution

The fourth proportional to 5,112.62, 7,655.25 and 2,918.33 is: 4,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.62 : 7,655.25 = 2,918.33 : x
  2. Step 2: Convert to fraction form
    5,112.62/7,655.25 = 2,918.33/x
  3. Step 3: Cross multiply
    5,112.62x = 7,655.25 × 2,918.33
  4. Step 4: Simplify right side
    5,112.62x = 22,340,507.46
  5. Step 5: Solve for x
    x = 22,340,507.46/5,112.62
  6. Step 6: Final answer
    x = 4,369.68

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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.