Home / 5,040.78-7,564.27-3,189.34

Finding the Fourth Proportional to 5,040.78, 7,564.27 and 3,189.34

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Solution

The fourth proportional to 5,040.78, 7,564.27 and 3,189.34 is: 4,785.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040.78 : 7,564.27 = 3,189.34 : x
  2. Step 2: Convert to fraction form
    5,040.78/7,564.27 = 3,189.34/x
  3. Step 3: Cross multiply
    5,040.78x = 7,564.27 × 3,189.34
  4. Step 4: Simplify right side
    5,040.78x = 24,125,028.88
  5. Step 5: Solve for x
    x = 24,125,028.88/5,040.78
  6. Step 6: Final answer
    x = 4,785.97

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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.