Home / 2,179.24-3,006.66-1,351.72

Finding the Fourth Proportional to 2,179.24, 3,006.66 and 1,351.72

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Solution

The fourth proportional to 2,179.24, 3,006.66 and 1,351.72 is: 1,864.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.24 : 3,006.66 = 1,351.72 : x
  2. Step 2: Convert to fraction form
    2,179.24/3,006.66 = 1,351.72/x
  3. Step 3: Cross multiply
    2,179.24x = 3,006.66 × 1,351.72
  4. Step 4: Simplify right side
    2,179.24x = 4,064,162.46
  5. Step 5: Solve for x
    x = 4,064,162.46/2,179.24
  6. Step 6: Final answer
    x = 1,864.94

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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.