Home / 1,422.14-2,133.20-448.24

Finding the Fourth Proportional to 1,422.14, 2,133.20 and 448.24

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Solution

The fourth proportional to 1,422.14, 2,133.20 and 448.24 is: 672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422.14 : 2,133.20 = 448.24 : x
  2. Step 2: Convert to fraction form
    1,422.14/2,133.20 = 448.24/x
  3. Step 3: Cross multiply
    1,422.14x = 2,133.20 × 448.24
  4. Step 4: Simplify right side
    1,422.14x = 956,185.57
  5. Step 5: Solve for x
    x = 956,185.57/1,422.14
  6. Step 6: Final answer
    x = 672.36

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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.