Home / 4,231.90-6,348.12-1,309.96

Finding the Fourth Proportional to 4,231.90, 6,348.12 and 1,309.96

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Solution

The fourth proportional to 4,231.90, 6,348.12 and 1,309.96 is: 1,965.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231.90 : 6,348.12 = 1,309.96 : x
  2. Step 2: Convert to fraction form
    4,231.90/6,348.12 = 1,309.96/x
  3. Step 3: Cross multiply
    4,231.90x = 6,348.12 × 1,309.96
  4. Step 4: Simplify right side
    4,231.90x = 8,315,783.28
  5. Step 5: Solve for x
    x = 8,315,783.28/4,231.90
  6. Step 6: Final answer
    x = 1,965.02

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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.