Home / 1,518.44-2,277.40-422.91

Finding the Fourth Proportional to 1,518.44, 2,277.40 and 422.91

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Solution

The fourth proportional to 1,518.44, 2,277.40 and 422.91 is: 634.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.44 : 2,277.40 = 422.91 : x
  2. Step 2: Convert to fraction form
    1,518.44/2,277.40 = 422.91/x
  3. Step 3: Cross multiply
    1,518.44x = 2,277.40 × 422.91
  4. Step 4: Simplify right side
    1,518.44x = 963,135.23
  5. Step 5: Solve for x
    x = 963,135.23/1,518.44
  6. Step 6: Final answer
    x = 634.29

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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.