Home / 3,180.57-4,389.21-1,764.31

Finding the Fourth Proportional to 3,180.57, 4,389.21 and 1,764.31

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Solution

The fourth proportional to 3,180.57, 4,389.21 and 1,764.31 is: 2,434.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.57 : 4,389.21 = 1,764.31 : x
  2. Step 2: Convert to fraction form
    3,180.57/4,389.21 = 1,764.31/x
  3. Step 3: Cross multiply
    3,180.57x = 4,389.21 × 1,764.31
  4. Step 4: Simplify right side
    3,180.57x = 7,743,916.97
  5. Step 5: Solve for x
    x = 7,743,916.97/3,180.57
  6. Step 6: Final answer
    x = 2,434.75

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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.