Home / 1,215.06-1,822.42-484.22

Finding the Fourth Proportional to 1,215.06, 1,822.42 and 484.22

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Solution

The fourth proportional to 1,215.06, 1,822.42 and 484.22 is: 726.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.06 : 1,822.42 = 484.22 : x
  2. Step 2: Convert to fraction form
    1,215.06/1,822.42 = 484.22/x
  3. Step 3: Cross multiply
    1,215.06x = 1,822.42 × 484.22
  4. Step 4: Simplify right side
    1,215.06x = 882,452.21
  5. Step 5: Solve for x
    x = 882,452.21/1,215.06
  6. Step 6: Final answer
    x = 726.26

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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.