Home / 1,102.23-1,522.22-1,008.63

Finding the Fourth Proportional to 1,102.23, 1,522.22 and 1,008.63

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Solution

The fourth proportional to 1,102.23, 1,522.22 and 1,008.63 is: 1,392.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.23 : 1,522.22 = 1,008.63 : x
  2. Step 2: Convert to fraction form
    1,102.23/1,522.22 = 1,008.63/x
  3. Step 3: Cross multiply
    1,102.23x = 1,522.22 × 1,008.63
  4. Step 4: Simplify right side
    1,102.23x = 1,535,351.72
  5. Step 5: Solve for x
    x = 1,535,351.72/1,102.23
  6. Step 6: Final answer
    x = 1,392.95

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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.