Home / 5,124.78-7,679.34-3,040.68

Finding the Fourth Proportional to 5,124.78, 7,679.34 and 3,040.68

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Solution

The fourth proportional to 5,124.78, 7,679.34 and 3,040.68 is: 4,556.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.78 : 7,679.34 = 3,040.68 : x
  2. Step 2: Convert to fraction form
    5,124.78/7,679.34 = 3,040.68/x
  3. Step 3: Cross multiply
    5,124.78x = 7,679.34 × 3,040.68
  4. Step 4: Simplify right side
    5,124.78x = 23,350,415.55
  5. Step 5: Solve for x
    x = 23,350,415.55/5,124.78
  6. Step 6: Final answer
    x = 4,556.37

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1.5x scale

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.