Home / 1,453.24-2,180.22-479.80

Finding the Fourth Proportional to 1,453.24, 2,180.22 and 479.80

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Solution

The fourth proportional to 1,453.24, 2,180.22 and 479.80 is: 719.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.24 : 2,180.22 = 479.80 : x
  2. Step 2: Convert to fraction form
    1,453.24/2,180.22 = 479.80/x
  3. Step 3: Cross multiply
    1,453.24x = 2,180.22 × 479.80
  4. Step 4: Simplify right side
    1,453.24x = 1,046,069.56
  5. Step 5: Solve for x
    x = 1,046,069.56/1,453.24
  6. Step 6: Final answer
    x = 719.82

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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.