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Finding the Fourth Proportional to 1,473.14, 2,209.62 and 548.57

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Solution

The fourth proportional to 1,473.14, 2,209.62 and 548.57 is: 822.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.14 : 2,209.62 = 548.57 : x
  2. Step 2: Convert to fraction form
    1,473.14/2,209.62 = 548.57/x
  3. Step 3: Cross multiply
    1,473.14x = 2,209.62 × 548.57
  4. Step 4: Simplify right side
    1,473.14x = 1,212,131.24
  5. Step 5: Solve for x
    x = 1,212,131.24/1,473.14
  6. Step 6: Final answer
    x = 822.82

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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.