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Finding the Fourth Proportional to 6,331.75, 8,730.70 and 4,090.67

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Solution

The fourth proportional to 6,331.75, 8,730.70 and 4,090.67 is: 5,640.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.75 : 8,730.70 = 4,090.67 : x
  2. Step 2: Convert to fraction form
    6,331.75/8,730.70 = 4,090.67/x
  3. Step 3: Cross multiply
    6,331.75x = 8,730.70 × 4,090.67
  4. Step 4: Simplify right side
    6,331.75x = 35,714,412.57
  5. Step 5: Solve for x
    x = 35,714,412.57/6,331.75
  6. Step 6: Final answer
    x = 5,640.53

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