Home / 2,179.88-3,266.62-1,355.66

Finding the Fourth Proportional to 2,179.88, 3,266.62 and 1,355.66

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Solution

The fourth proportional to 2,179.88, 3,266.62 and 1,355.66 is: 2,031.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.88 : 3,266.62 = 1,355.66 : x
  2. Step 2: Convert to fraction form
    2,179.88/3,266.62 = 1,355.66/x
  3. Step 3: Cross multiply
    2,179.88x = 3,266.62 × 1,355.66
  4. Step 4: Simplify right side
    2,179.88x = 4,428,426.07
  5. Step 5: Solve for x
    x = 4,428,426.07/2,179.88
  6. Step 6: Final answer
    x = 2,031.50

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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.