Home / 5,279.58-7,282.90-3,391.44

Finding the Fourth Proportional to 5,279.58, 7,282.90 and 3,391.44

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Solution

The fourth proportional to 5,279.58, 7,282.90 and 3,391.44 is: 4,678.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.58 : 7,282.90 = 3,391.44 : x
  2. Step 2: Convert to fraction form
    5,279.58/7,282.90 = 3,391.44/x
  3. Step 3: Cross multiply
    5,279.58x = 7,282.90 × 3,391.44
  4. Step 4: Simplify right side
    5,279.58x = 24,699,556.05
  5. Step 5: Solve for x
    x = 24,699,556.05/5,279.58
  6. Step 6: Final answer
    x = 4,678.32

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1.5x scale

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.