Home / 6,318.02-8,721.07-3,800.90

Finding the Fourth Proportional to 6,318.02, 8,721.07 and 3,800.90

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Solution

The fourth proportional to 6,318.02, 8,721.07 and 3,800.90 is: 5,246.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.02 : 8,721.07 = 3,800.90 : x
  2. Step 2: Convert to fraction form
    6,318.02/8,721.07 = 3,800.90/x
  3. Step 3: Cross multiply
    6,318.02x = 8,721.07 × 3,800.90
  4. Step 4: Simplify right side
    6,318.02x = 33,147,861.86
  5. Step 5: Solve for x
    x = 33,147,861.86/6,318.02
  6. Step 6: Final answer
    x = 5,246.56

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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.