Home / 5,279.81-7,287.32-3,042.08

Finding the Fourth Proportional to 5,279.81, 7,287.32 and 3,042.08

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Solution

The fourth proportional to 5,279.81, 7,287.32 and 3,042.08 is: 4,198.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.81 : 7,287.32 = 3,042.08 : x
  2. Step 2: Convert to fraction form
    5,279.81/7,287.32 = 3,042.08/x
  3. Step 3: Cross multiply
    5,279.81x = 7,287.32 × 3,042.08
  4. Step 4: Simplify right side
    5,279.81x = 22,168,558.78
  5. Step 5: Solve for x
    x = 22,168,558.78/5,279.81
  6. Step 6: Final answer
    x = 4,198.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.