Home / 3,279.65-4,919.47-2,313.72

Finding the Fourth Proportional to 3,279.65, 4,919.47 and 2,313.72

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Solution

The fourth proportional to 3,279.65, 4,919.47 and 2,313.72 is: 3,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.65 : 4,919.47 = 2,313.72 : x
  2. Step 2: Convert to fraction form
    3,279.65/4,919.47 = 2,313.72/x
  3. Step 3: Cross multiply
    3,279.65x = 4,919.47 × 2,313.72
  4. Step 4: Simplify right side
    3,279.65x = 11,382,270.34
  5. Step 5: Solve for x
    x = 11,382,270.34/3,279.65
  6. Step 6: Final answer
    x = 3,470.58

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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.