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Finding the Fourth Proportional to 2,671.78, 4,007.73 and 1,576.93

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Solution

The fourth proportional to 2,671.78, 4,007.73 and 1,576.93 is: 2,365.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.78 : 4,007.73 = 1,576.93 : x
  2. Step 2: Convert to fraction form
    2,671.78/4,007.73 = 1,576.93/x
  3. Step 3: Cross multiply
    2,671.78x = 4,007.73 × 1,576.93
  4. Step 4: Simplify right side
    2,671.78x = 6,319,909.67
  5. Step 5: Solve for x
    x = 6,319,909.67/2,671.78
  6. Step 6: Final answer
    x = 2,365.43

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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.