Home / 6,388.49-9,572.96-2,688.69

Finding the Fourth Proportional to 6,388.49, 9,572.96 and 2,688.69

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Solution

The fourth proportional to 6,388.49, 9,572.96 and 2,688.69 is: 4,028.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.49 : 9,572.96 = 2,688.69 : x
  2. Step 2: Convert to fraction form
    6,388.49/9,572.96 = 2,688.69/x
  3. Step 3: Cross multiply
    6,388.49x = 9,572.96 × 2,688.69
  4. Step 4: Simplify right side
    6,388.49x = 25,738,708.38
  5. Step 5: Solve for x
    x = 25,738,708.38/6,388.49
  6. Step 6: Final answer
    x = 4,028.92

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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.