Home / 3,455.52-5,180.88-1,722.72

Finding the Fourth Proportional to 3,455.52, 5,180.88 and 1,722.72

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Solution

The fourth proportional to 3,455.52, 5,180.88 and 1,722.72 is: 2,582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.52 : 5,180.88 = 1,722.72 : x
  2. Step 2: Convert to fraction form
    3,455.52/5,180.88 = 1,722.72/x
  3. Step 3: Cross multiply
    3,455.52x = 5,180.88 × 1,722.72
  4. Step 4: Simplify right side
    3,455.52x = 8,925,205.59
  5. Step 5: Solve for x
    x = 8,925,205.59/3,455.52
  6. Step 6: Final answer
    x = 2,582.88

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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.