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Finding the Fourth Proportional to 2,009.45, 3,014.17 and 548.81

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Solution

The fourth proportional to 2,009.45, 3,014.17 and 548.81 is: 823.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.45 : 3,014.17 = 548.81 : x
  2. Step 2: Convert to fraction form
    2,009.45/3,014.17 = 548.81/x
  3. Step 3: Cross multiply
    2,009.45x = 3,014.17 × 548.81
  4. Step 4: Simplify right side
    2,009.45x = 1,654,206.64
  5. Step 5: Solve for x
    x = 1,654,206.64/2,009.45
  6. Step 6: Final answer
    x = 823.22

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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.