Home / 4,286.20-6,429.30-1,945.30

Finding the Fourth Proportional to 4,286.20, 6,429.30 and 1,945.30

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Solution

The fourth proportional to 4,286.20, 6,429.30 and 1,945.30 is: 2,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.20 : 6,429.30 = 1,945.30 : x
  2. Step 2: Convert to fraction form
    4,286.20/6,429.30 = 1,945.30/x
  3. Step 3: Cross multiply
    4,286.20x = 6,429.30 × 1,945.30
  4. Step 4: Simplify right side
    4,286.20x = 12,506,917.29
  5. Step 5: Solve for x
    x = 12,506,917.29/4,286.20
  6. Step 6: Final answer
    x = 2,917.95

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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.