Home / 1,491.20-2,057.92-1,049.24

Finding the Fourth Proportional to 1,491.20, 2,057.92 and 1,049.24

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Solution

The fourth proportional to 1,491.20, 2,057.92 and 1,049.24 is: 1,448.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.20 : 2,057.92 = 1,049.24 : x
  2. Step 2: Convert to fraction form
    1,491.20/2,057.92 = 1,049.24/x
  3. Step 3: Cross multiply
    1,491.20x = 2,057.92 × 1,049.24
  4. Step 4: Simplify right side
    1,491.20x = 2,159,251.98
  5. Step 5: Solve for x
    x = 2,159,251.98/1,491.20
  6. Step 6: Final answer
    x = 1,448.00

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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.