Home / 2,011.19-3,016.32-712.66

Finding the Fourth Proportional to 2,011.19, 3,016.32 and 712.66

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Solution

The fourth proportional to 2,011.19, 3,016.32 and 712.66 is: 1,068.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.19 : 3,016.32 = 712.66 : x
  2. Step 2: Convert to fraction form
    2,011.19/3,016.32 = 712.66/x
  3. Step 3: Cross multiply
    2,011.19x = 3,016.32 × 712.66
  4. Step 4: Simplify right side
    2,011.19x = 2,149,610.61
  5. Step 5: Solve for x
    x = 2,149,610.61/2,011.19
  6. Step 6: Final answer
    x = 1,068.83

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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.