Home / 5,135.64-7,701-2,212.75

Finding the Fourth Proportional to 5,135.64, 7,701 and 2,212.75

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Solution

The fourth proportional to 5,135.64, 7,701 and 2,212.75 is: 3,318.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.64 : 7,701 = 2,212.75 : x
  2. Step 2: Convert to fraction form
    5,135.64/7,701 = 2,212.75/x
  3. Step 3: Cross multiply
    5,135.64x = 7,701 × 2,212.75
  4. Step 4: Simplify right side
    5,135.64x = 17,040,387.75
  5. Step 5: Solve for x
    x = 17,040,387.75/5,135.64
  6. Step 6: Final answer
    x = 3,318.07

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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.