Home / 3,934.76-5,405.66-3,520.59

Finding the Fourth Proportional to 3,934.76, 5,405.66 and 3,520.59

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Solution

The fourth proportional to 3,934.76, 5,405.66 and 3,520.59 is: 4,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.76 : 5,405.66 = 3,520.59 : x
  2. Step 2: Convert to fraction form
    3,934.76/5,405.66 = 3,520.59/x
  3. Step 3: Cross multiply
    3,934.76x = 5,405.66 × 3,520.59
  4. Step 4: Simplify right side
    3,934.76x = 19,031,121.34
  5. Step 5: Solve for x
    x = 19,031,121.34/3,934.76
  6. Step 6: Final answer
    x = 4,836.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.