Home / 6,349.03-8,760.62-3,989.50

Finding the Fourth Proportional to 6,349.03, 8,760.62 and 3,989.50

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Solution

The fourth proportional to 6,349.03, 8,760.62 and 3,989.50 is: 5,504.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.03 : 8,760.62 = 3,989.50 : x
  2. Step 2: Convert to fraction form
    6,349.03/8,760.62 = 3,989.50/x
  3. Step 3: Cross multiply
    6,349.03x = 8,760.62 × 3,989.50
  4. Step 4: Simplify right side
    6,349.03x = 34,950,493.49
  5. Step 5: Solve for x
    x = 34,950,493.49/6,349.03
  6. Step 6: Final answer
    x = 5,504.86

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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.