Home / 2,709.90-4,066.56-1,324.08

Finding the Fourth Proportional to 2,709.90, 4,066.56 and 1,324.08

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Solution

The fourth proportional to 2,709.90, 4,066.56 and 1,324.08 is: 1,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.90 : 4,066.56 = 1,324.08 : x
  2. Step 2: Convert to fraction form
    2,709.90/4,066.56 = 1,324.08/x
  3. Step 3: Cross multiply
    2,709.90x = 4,066.56 × 1,324.08
  4. Step 4: Simplify right side
    2,709.90x = 5,384,450.76
  5. Step 5: Solve for x
    x = 5,384,450.76/2,709.90
  6. Step 6: Final answer
    x = 1,986.96

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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.