Home / 4,286.95-6,429.30-1,820.50

Finding the Fourth Proportional to 4,286.95, 6,429.30 and 1,820.50

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Solution

The fourth proportional to 4,286.95, 6,429.30 and 1,820.50 is: 2,730.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.95 : 6,429.30 = 1,820.50 : x
  2. Step 2: Convert to fraction form
    4,286.95/6,429.30 = 1,820.50/x
  3. Step 3: Cross multiply
    4,286.95x = 6,429.30 × 1,820.50
  4. Step 4: Simplify right side
    4,286.95x = 11,704,540.65
  5. Step 5: Solve for x
    x = 11,704,540.65/4,286.95
  6. Step 6: Final answer
    x = 2,730.27

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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.