Home / 1,341.20-2,011.92-367.28

Finding the Fourth Proportional to 1,341.20, 2,011.92 and 367.28

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Solution

The fourth proportional to 1,341.20, 2,011.92 and 367.28 is: 550.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.20 : 2,011.92 = 367.28 : x
  2. Step 2: Convert to fraction form
    1,341.20/2,011.92 = 367.28/x
  3. Step 3: Cross multiply
    1,341.20x = 2,011.92 × 367.28
  4. Step 4: Simplify right side
    1,341.20x = 738,937.98
  5. Step 5: Solve for x
    x = 738,937.98/1,341.20
  6. Step 6: Final answer
    x = 550.95

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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.