Home / 4,491.52-6,732.80-3,120.64

Finding the Fourth Proportional to 4,491.52, 6,732.80 and 3,120.64

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Solution

The fourth proportional to 4,491.52, 6,732.80 and 3,120.64 is: 4,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,491.52 : 6,732.80 = 3,120.64 : x
  2. Step 2: Convert to fraction form
    4,491.52/6,732.80 = 3,120.64/x
  3. Step 3: Cross multiply
    4,491.52x = 6,732.80 × 3,120.64
  4. Step 4: Simplify right side
    4,491.52x = 21,010,644.99
  5. Step 5: Solve for x
    x = 21,010,644.99/4,491.52
  6. Step 6: Final answer
    x = 4,677.85

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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.