Home / 4,101.31-6,151.79-1,328.09

Finding the Fourth Proportional to 4,101.31, 6,151.79 and 1,328.09

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Solution

The fourth proportional to 4,101.31, 6,151.79 and 1,328.09 is: 1,992.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,101.31 : 6,151.79 = 1,328.09 : x
  2. Step 2: Convert to fraction form
    4,101.31/6,151.79 = 1,328.09/x
  3. Step 3: Cross multiply
    4,101.31x = 6,151.79 × 1,328.09
  4. Step 4: Simplify right side
    4,101.31x = 8,170,132.69
  5. Step 5: Solve for x
    x = 8,170,132.69/4,101.31
  6. Step 6: Final answer
    x = 1,992.08

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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.