Home / 3,722.52-5,135.40-2,828.64

Finding the Fourth Proportional to 3,722.52, 5,135.40 and 2,828.64

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Solution

The fourth proportional to 3,722.52, 5,135.40 and 2,828.64 is: 3,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.52 : 5,135.40 = 2,828.64 : x
  2. Step 2: Convert to fraction form
    3,722.52/5,135.40 = 2,828.64/x
  3. Step 3: Cross multiply
    3,722.52x = 5,135.40 × 2,828.64
  4. Step 4: Simplify right side
    3,722.52x = 14,526,197.86
  5. Step 5: Solve for x
    x = 14,526,197.86/3,722.52
  6. Step 6: Final answer
    x = 3,902.25

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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.