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Finding the Fourth Proportional to 3,958.76, 5,930.84 and 3,521.36

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Solution

The fourth proportional to 3,958.76, 5,930.84 and 3,521.36 is: 5,275.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.76 : 5,930.84 = 3,521.36 : x
  2. Step 2: Convert to fraction form
    3,958.76/5,930.84 = 3,521.36/x
  3. Step 3: Cross multiply
    3,958.76x = 5,930.84 × 3,521.36
  4. Step 4: Simplify right side
    3,958.76x = 20,884,622.74
  5. Step 5: Solve for x
    x = 20,884,622.74/3,958.76
  6. Step 6: Final answer
    x = 5,275.55

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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.