Home / 5,308.87-7,318.91-4,235.79

Finding the Fourth Proportional to 5,308.87, 7,318.91 and 4,235.79

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Solution

The fourth proportional to 5,308.87, 7,318.91 and 4,235.79 is: 5,839.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.87 : 7,318.91 = 4,235.79 : x
  2. Step 2: Convert to fraction form
    5,308.87/7,318.91 = 4,235.79/x
  3. Step 3: Cross multiply
    5,308.87x = 7,318.91 × 4,235.79
  4. Step 4: Simplify right side
    5,308.87x = 31,001,365.79
  5. Step 5: Solve for x
    x = 31,001,365.79/5,308.87
  6. Step 6: Final answer
    x = 5,839.54

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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.