Home / 4,257.90-6,386.83-1,336.42

Finding the Fourth Proportional to 4,257.90, 6,386.83 and 1,336.42

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Solution

The fourth proportional to 4,257.90, 6,386.83 and 1,336.42 is: 2,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.90 : 6,386.83 = 1,336.42 : x
  2. Step 2: Convert to fraction form
    4,257.90/6,386.83 = 1,336.42/x
  3. Step 3: Cross multiply
    4,257.90x = 6,386.83 × 1,336.42
  4. Step 4: Simplify right side
    4,257.90x = 8,535,487.35
  5. Step 5: Solve for x
    x = 8,535,487.35/4,257.90
  6. Step 6: Final answer
    x = 2,004.62

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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.