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Finding the Fourth Proportional to 2,007.79, 3,011.34 and 547.06

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Solution

The fourth proportional to 2,007.79, 3,011.34 and 547.06 is: 820.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.79 : 3,011.34 = 547.06 : x
  2. Step 2: Convert to fraction form
    2,007.79/3,011.34 = 547.06/x
  3. Step 3: Cross multiply
    2,007.79x = 3,011.34 × 547.06
  4. Step 4: Simplify right side
    2,007.79x = 1,647,383.66
  5. Step 5: Solve for x
    x = 1,647,383.66/2,007.79
  6. Step 6: Final answer
    x = 820.50

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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.