Home / 6,286.20-9,429.30-3,953.40

Finding the Fourth Proportional to 6,286.20, 9,429.30 and 3,953.40

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Solution

The fourth proportional to 6,286.20, 9,429.30 and 3,953.40 is: 5,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286.20 : 9,429.30 = 3,953.40 : x
  2. Step 2: Convert to fraction form
    6,286.20/9,429.30 = 3,953.40/x
  3. Step 3: Cross multiply
    6,286.20x = 9,429.30 × 3,953.40
  4. Step 4: Simplify right side
    6,286.20x = 37,277,794.62
  5. Step 5: Solve for x
    x = 37,277,794.62/6,286.20
  6. Step 6: Final answer
    x = 5,930.10

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Half scale
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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.