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Finding the Fourth Proportional to 6,389.03, 9,580.31 and 2,923.31

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Solution

The fourth proportional to 6,389.03, 9,580.31 and 2,923.31 is: 4,383.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.03 : 9,580.31 = 2,923.31 : x
  2. Step 2: Convert to fraction form
    6,389.03/9,580.31 = 2,923.31/x
  3. Step 3: Cross multiply
    6,389.03x = 9,580.31 × 2,923.31
  4. Step 4: Simplify right side
    6,389.03x = 28,006,236.32
  5. Step 5: Solve for x
    x = 28,006,236.32/6,389.03
  6. Step 6: Final answer
    x = 4,383.49

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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.