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Finding the Fourth Proportional to 4,265.06, 6,389.06 and 3,389.04

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Solution

The fourth proportional to 4,265.06, 6,389.06 and 3,389.04 is: 5,076.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,265.06 : 6,389.06 = 3,389.04 : x
  2. Step 2: Convert to fraction form
    4,265.06/6,389.06 = 3,389.04/x
  3. Step 3: Cross multiply
    4,265.06x = 6,389.06 × 3,389.04
  4. Step 4: Simplify right side
    4,265.06x = 21,652,762.96
  5. Step 5: Solve for x
    x = 21,652,762.96/4,265.06
  6. Step 6: Final answer
    x = 5,076.78

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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.