Home / 1,518.52-2,277.31-422.59

Finding the Fourth Proportional to 1,518.52, 2,277.31 and 422.59

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Solution

The fourth proportional to 1,518.52, 2,277.31 and 422.59 is: 633.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.52 : 2,277.31 = 422.59 : x
  2. Step 2: Convert to fraction form
    1,518.52/2,277.31 = 422.59/x
  3. Step 3: Cross multiply
    1,518.52x = 2,277.31 × 422.59
  4. Step 4: Simplify right side
    1,518.52x = 962,368.43
  5. Step 5: Solve for x
    x = 962,368.43/1,518.52
  6. Step 6: Final answer
    x = 633.75

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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.