Home / 2,917.92-4,378.76-1,162.65

Finding the Fourth Proportional to 2,917.92, 4,378.76 and 1,162.65

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Solution

The fourth proportional to 2,917.92, 4,378.76 and 1,162.65 is: 1,744.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.92 : 4,378.76 = 1,162.65 : x
  2. Step 2: Convert to fraction form
    2,917.92/4,378.76 = 1,162.65/x
  3. Step 3: Cross multiply
    2,917.92x = 4,378.76 × 1,162.65
  4. Step 4: Simplify right side
    2,917.92x = 5,090,980.28
  5. Step 5: Solve for x
    x = 5,090,980.28/2,917.92
  6. Step 6: Final answer
    x = 1,744.73

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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.