Home / 2,171.18-2,996.67-1,472.78

Finding the Fourth Proportional to 2,171.18, 2,996.67 and 1,472.78

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Solution

The fourth proportional to 2,171.18, 2,996.67 and 1,472.78 is: 2,032.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.18 : 2,996.67 = 1,472.78 : x
  2. Step 2: Convert to fraction form
    2,171.18/2,996.67 = 1,472.78/x
  3. Step 3: Cross multiply
    2,171.18x = 2,996.67 × 1,472.78
  4. Step 4: Simplify right side
    2,171.18x = 4,413,435.64
  5. Step 5: Solve for x
    x = 4,413,435.64/2,171.18
  6. Step 6: Final answer
    x = 2,032.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.