Home / 5,119.36-7,672.56-2,487.48

Finding the Fourth Proportional to 5,119.36, 7,672.56 and 2,487.48

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Solution

The fourth proportional to 5,119.36, 7,672.56 and 2,487.48 is: 3,728.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.36 : 7,672.56 = 2,487.48 : x
  2. Step 2: Convert to fraction form
    5,119.36/7,672.56 = 2,487.48/x
  3. Step 3: Cross multiply
    5,119.36x = 7,672.56 × 2,487.48
  4. Step 4: Simplify right side
    5,119.36x = 19,085,339.55
  5. Step 5: Solve for x
    x = 19,085,339.55/5,119.36
  6. Step 6: Final answer
    x = 3,728.07

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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.