Home / 1,367.10-2,050.92-393.21

Finding the Fourth Proportional to 1,367.10, 2,050.92 and 393.21

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Solution

The fourth proportional to 1,367.10, 2,050.92 and 393.21 is: 589.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.10 : 2,050.92 = 393.21 : x
  2. Step 2: Convert to fraction form
    1,367.10/2,050.92 = 393.21/x
  3. Step 3: Cross multiply
    1,367.10x = 2,050.92 × 393.21
  4. Step 4: Simplify right side
    1,367.10x = 806,442.25
  5. Step 5: Solve for x
    x = 806,442.25/1,367.10
  6. Step 6: Final answer
    x = 589.89

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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.