Home / 5,726.72-7,902.60-3,208.52

Finding the Fourth Proportional to 5,726.72, 7,902.60 and 3,208.52

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Solution

The fourth proportional to 5,726.72, 7,902.60 and 3,208.52 is: 4,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,726.72 : 7,902.60 = 3,208.52 : x
  2. Step 2: Convert to fraction form
    5,726.72/7,902.60 = 3,208.52/x
  3. Step 3: Cross multiply
    5,726.72x = 7,902.60 × 3,208.52
  4. Step 4: Simplify right side
    5,726.72x = 25,355,650.15
  5. Step 5: Solve for x
    x = 25,355,650.15/5,726.72
  6. Step 6: Final answer
    x = 4,427.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.