Home / 3,515.58-5,273.64-1,323.90

Finding the Fourth Proportional to 3,515.58, 5,273.64 and 1,323.90

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Solution

The fourth proportional to 3,515.58, 5,273.64 and 1,323.90 is: 1,985.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.58 : 5,273.64 = 1,323.90 : x
  2. Step 2: Convert to fraction form
    3,515.58/5,273.64 = 1,323.90/x
  3. Step 3: Cross multiply
    3,515.58x = 5,273.64 × 1,323.90
  4. Step 4: Simplify right side
    3,515.58x = 6,981,772.00
  5. Step 5: Solve for x
    x = 6,981,772.00/3,515.58
  6. Step 6: Final answer
    x = 1,985.95

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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.