Home / 2,172.37-3,258.56-528.92

Finding the Fourth Proportional to 2,172.37, 3,258.56 and 528.92

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Solution

The fourth proportional to 2,172.37, 3,258.56 and 528.92 is: 793.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.37 : 3,258.56 = 528.92 : x
  2. Step 2: Convert to fraction form
    2,172.37/3,258.56 = 528.92/x
  3. Step 3: Cross multiply
    2,172.37x = 3,258.56 × 528.92
  4. Step 4: Simplify right side
    2,172.37x = 1,723,498.62
  5. Step 5: Solve for x
    x = 1,723,498.62/2,172.37
  6. Step 6: Final answer
    x = 793.37

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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.