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Finding the Fourth Proportional to 6,388.85, 9,580.03 and 2,923.13

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Solution

The fourth proportional to 6,388.85, 9,580.03 and 2,923.13 is: 4,383.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.85 : 9,580.03 = 2,923.13 : x
  2. Step 2: Convert to fraction form
    6,388.85/9,580.03 = 2,923.13/x
  3. Step 3: Cross multiply
    6,388.85x = 9,580.03 × 2,923.13
  4. Step 4: Simplify right side
    6,388.85x = 28,003,617.89
  5. Step 5: Solve for x
    x = 28,003,617.89/6,388.85
  6. Step 6: Final answer
    x = 4,383.21

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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.