Home / 5,148.08-7,735.78-2,809.79

Finding the Fourth Proportional to 5,148.08, 7,735.78 and 2,809.79

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Solution

The fourth proportional to 5,148.08, 7,735.78 and 2,809.79 is: 4,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.08 : 7,735.78 = 2,809.79 : x
  2. Step 2: Convert to fraction form
    5,148.08/7,735.78 = 2,809.79/x
  3. Step 3: Cross multiply
    5,148.08x = 7,735.78 × 2,809.79
  4. Step 4: Simplify right side
    5,148.08x = 21,735,910.26
  5. Step 5: Solve for x
    x = 21,735,910.26/5,148.08
  6. Step 6: Final answer
    x = 4,222.14

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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.