Home / 7,629.92-11,442-3,934.16

Finding the Fourth Proportional to 7,629.92, 11,442 and 3,934.16

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Solution

The fourth proportional to 7,629.92, 11,442 and 3,934.16 is: 5,899.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.92 : 11,442 = 3,934.16 : x
  2. Step 2: Convert to fraction form
    7,629.92/11,442 = 3,934.16/x
  3. Step 3: Cross multiply
    7,629.92x = 11,442 × 3,934.16
  4. Step 4: Simplify right side
    7,629.92x = 45,014,658.72
  5. Step 5: Solve for x
    x = 45,014,658.72/7,629.92
  6. Step 6: Final answer
    x = 5,899.76

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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.