Home / 3,627.52-5,429.28-3,120.64

Finding the Fourth Proportional to 3,627.52, 5,429.28 and 3,120.64

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Solution

The fourth proportional to 3,627.52, 5,429.28 and 3,120.64 is: 4,670.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.52 : 5,429.28 = 3,120.64 : x
  2. Step 2: Convert to fraction form
    3,627.52/5,429.28 = 3,120.64/x
  3. Step 3: Cross multiply
    3,627.52x = 5,429.28 × 3,120.64
  4. Step 4: Simplify right side
    3,627.52x = 16,942,828.34
  5. Step 5: Solve for x
    x = 16,942,828.34/3,627.52
  6. Step 6: Final answer
    x = 4,670.64

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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.