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Finding the Fourth Proportional to 969.74, 1,454.62 and 537.82

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Solution

The fourth proportional to 969.74, 1,454.62 and 537.82 is: 806.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    969.74 : 1,454.62 = 537.82 : x
  2. Step 2: Convert to fraction form
    969.74/1,454.62 = 537.82/x
  3. Step 3: Cross multiply
    969.74x = 1,454.62 × 537.82
  4. Step 4: Simplify right side
    969.74x = 782,323.73
  5. Step 5: Solve for x
    x = 782,323.73/969.74
  6. Step 6: Final answer
    x = 806.74

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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.