Home / 1,491.43-2,238.36-1,080.76

Finding the Fourth Proportional to 1,491.43, 2,238.36 and 1,080.76

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Solution

The fourth proportional to 1,491.43, 2,238.36 and 1,080.76 is: 1,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.43 : 2,238.36 = 1,080.76 : x
  2. Step 2: Convert to fraction form
    1,491.43/2,238.36 = 1,080.76/x
  3. Step 3: Cross multiply
    1,491.43x = 2,238.36 × 1,080.76
  4. Step 4: Simplify right side
    1,491.43x = 2,419,129.95
  5. Step 5: Solve for x
    x = 2,419,129.95/1,491.43
  6. Step 6: Final answer
    x = 1,622.02

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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.