Home / 5,279.24-7,912.38-3,823.40

Finding the Fourth Proportional to 5,279.24, 7,912.38 and 3,823.40

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Solution

The fourth proportional to 5,279.24, 7,912.38 and 3,823.40 is: 5,730.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.24 : 7,912.38 = 3,823.40 : x
  2. Step 2: Convert to fraction form
    5,279.24/7,912.38 = 3,823.40/x
  3. Step 3: Cross multiply
    5,279.24x = 7,912.38 × 3,823.40
  4. Step 4: Simplify right side
    5,279.24x = 30,252,193.69
  5. Step 5: Solve for x
    x = 30,252,193.69/5,279.24
  6. Step 6: Final answer
    x = 5,730.41

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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.