Home / 3,270.48-4,904.35-1,321.31

Finding the Fourth Proportional to 3,270.48, 4,904.35 and 1,321.31

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Solution

The fourth proportional to 3,270.48, 4,904.35 and 1,321.31 is: 1,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.48 : 4,904.35 = 1,321.31 : x
  2. Step 2: Convert to fraction form
    3,270.48/4,904.35 = 1,321.31/x
  3. Step 3: Cross multiply
    3,270.48x = 4,904.35 × 1,321.31
  4. Step 4: Simplify right side
    3,270.48x = 6,480,175.66
  5. Step 5: Solve for x
    x = 6,480,175.66/3,270.48
  6. Step 6: Final answer
    x = 1,981.42

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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.