Home / 4,281.78-6,422.70-4,095.90

Finding the Fourth Proportional to 4,281.78, 6,422.70 and 4,095.90

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Solution

The fourth proportional to 4,281.78, 6,422.70 and 4,095.90 is: 6,143.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.78 : 6,422.70 = 4,095.90 : x
  2. Step 2: Convert to fraction form
    4,281.78/6,422.70 = 4,095.90/x
  3. Step 3: Cross multiply
    4,281.78x = 6,422.70 × 4,095.90
  4. Step 4: Simplify right side
    4,281.78x = 26,306,736.93
  5. Step 5: Solve for x
    x = 26,306,736.93/4,281.78
  6. Step 6: Final answer
    x = 6,143.88

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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.