Home / 5,215.73-7,829.06-2,749.88

Finding the Fourth Proportional to 5,215.73, 7,829.06 and 2,749.88

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Solution

The fourth proportional to 5,215.73, 7,829.06 and 2,749.88 is: 4,127.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.73 : 7,829.06 = 2,749.88 : x
  2. Step 2: Convert to fraction form
    5,215.73/7,829.06 = 2,749.88/x
  3. Step 3: Cross multiply
    5,215.73x = 7,829.06 × 2,749.88
  4. Step 4: Simplify right side
    5,215.73x = 21,528,981.34
  5. Step 5: Solve for x
    x = 21,528,981.34/5,215.73
  6. Step 6: Final answer
    x = 4,127.71

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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.