Home / 6,289.30-8,679.31-3,456.94

Finding the Fourth Proportional to 6,289.30, 8,679.31 and 3,456.94

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Solution

The fourth proportional to 6,289.30, 8,679.31 and 3,456.94 is: 4,770.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.30 : 8,679.31 = 3,456.94 : x
  2. Step 2: Convert to fraction form
    6,289.30/8,679.31 = 3,456.94/x
  3. Step 3: Cross multiply
    6,289.30x = 8,679.31 × 3,456.94
  4. Step 4: Simplify right side
    6,289.30x = 30,003,876.36
  5. Step 5: Solve for x
    x = 30,003,876.36/6,289.30
  6. Step 6: Final answer
    x = 4,770.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.