Home / 3,279.48-4,918.26-1,087.62

Finding the Fourth Proportional to 3,279.48, 4,918.26 and 1,087.62

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Solution

The fourth proportional to 3,279.48, 4,918.26 and 1,087.62 is: 1,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.48 : 4,918.26 = 1,087.62 : x
  2. Step 2: Convert to fraction form
    3,279.48/4,918.26 = 1,087.62/x
  3. Step 3: Cross multiply
    3,279.48x = 4,918.26 × 1,087.62
  4. Step 4: Simplify right side
    3,279.48x = 5,349,197.94
  5. Step 5: Solve for x
    x = 5,349,197.94/3,279.48
  6. Step 6: Final answer
    x = 1,631.11

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1.5x scale

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.