Home / 5,279.53-7,289.19-3,391.84

Finding the Fourth Proportional to 5,279.53, 7,289.19 and 3,391.84

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Solution

The fourth proportional to 5,279.53, 7,289.19 and 3,391.84 is: 4,682.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.53 : 7,289.19 = 3,391.84 : x
  2. Step 2: Convert to fraction form
    5,279.53/7,289.19 = 3,391.84/x
  3. Step 3: Cross multiply
    5,279.53x = 7,289.19 × 3,391.84
  4. Step 4: Simplify right side
    5,279.53x = 24,723,766.21
  5. Step 5: Solve for x
    x = 24,723,766.21/5,279.53
  6. Step 6: Final answer
    x = 4,682.95

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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.