Home / 1,131.11-1,697.20-351.24

Finding the Fourth Proportional to 1,131.11, 1,697.20 and 351.24

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Solution

The fourth proportional to 1,131.11, 1,697.20 and 351.24 is: 527.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131.11 : 1,697.20 = 351.24 : x
  2. Step 2: Convert to fraction form
    1,131.11/1,697.20 = 351.24/x
  3. Step 3: Cross multiply
    1,131.11x = 1,697.20 × 351.24
  4. Step 4: Simplify right side
    1,131.11x = 596,119.26
  5. Step 5: Solve for x
    x = 596,119.26/1,131.11
  6. Step 6: Final answer
    x = 527.02

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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.