Home / 2,180.36-3,270.84-719.66

Finding the Fourth Proportional to 2,180.36, 3,270.84 and 719.66

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Solution

The fourth proportional to 2,180.36, 3,270.84 and 719.66 is: 1,079.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.36 : 3,270.84 = 719.66 : x
  2. Step 2: Convert to fraction form
    2,180.36/3,270.84 = 719.66/x
  3. Step 3: Cross multiply
    2,180.36x = 3,270.84 × 719.66
  4. Step 4: Simplify right side
    2,180.36x = 2,353,892.71
  5. Step 5: Solve for x
    x = 2,353,892.71/2,180.36
  6. Step 6: Final answer
    x = 1,079.59

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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.