Home / 2,162.96-3,246.70-1,917.74

Finding the Fourth Proportional to 2,162.96, 3,246.70 and 1,917.74

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Solution

The fourth proportional to 2,162.96, 3,246.70 and 1,917.74 is: 2,878.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.96 : 3,246.70 = 1,917.74 : x
  2. Step 2: Convert to fraction form
    2,162.96/3,246.70 = 1,917.74/x
  3. Step 3: Cross multiply
    2,162.96x = 3,246.70 × 1,917.74
  4. Step 4: Simplify right side
    2,162.96x = 6,226,326.46
  5. Step 5: Solve for x
    x = 6,226,326.46/2,162.96
  6. Step 6: Final answer
    x = 2,878.61

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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.