Home / 2,890.29-3,990.08-2,004.56

Finding the Fourth Proportional to 2,890.29, 3,990.08 and 2,004.56

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Solution

The fourth proportional to 2,890.29, 3,990.08 and 2,004.56 is: 2,767.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.29 : 3,990.08 = 2,004.56 : x
  2. Step 2: Convert to fraction form
    2,890.29/3,990.08 = 2,004.56/x
  3. Step 3: Cross multiply
    2,890.29x = 3,990.08 × 2,004.56
  4. Step 4: Simplify right side
    2,890.29x = 7,998,324.79
  5. Step 5: Solve for x
    x = 7,998,324.79/2,890.29
  6. Step 6: Final answer
    x = 2,767.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.