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Finding the Fourth Proportional to 3,950.43, 5,925.91 and 1,139.34

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Solution

The fourth proportional to 3,950.43, 5,925.91 and 1,139.34 is: 1,709.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.43 : 5,925.91 = 1,139.34 : x
  2. Step 2: Convert to fraction form
    3,950.43/5,925.91 = 1,139.34/x
  3. Step 3: Cross multiply
    3,950.43x = 5,925.91 × 1,139.34
  4. Step 4: Simplify right side
    3,950.43x = 6,751,626.30
  5. Step 5: Solve for x
    x = 6,751,626.30/3,950.43
  6. Step 6: Final answer
    x = 1,709.09

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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.