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Finding the Fourth Proportional to 3,329.94, 4,997.98 and 3,129.00

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Solution

The fourth proportional to 3,329.94, 4,997.98 and 3,129.00 is: 4,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.94 : 4,997.98 = 3,129.00 : x
  2. Step 2: Convert to fraction form
    3,329.94/4,997.98 = 3,129.00/x
  3. Step 3: Cross multiply
    3,329.94x = 4,997.98 × 3,129.00
  4. Step 4: Simplify right side
    3,329.94x = 15,638,697.96
  5. Step 5: Solve for x
    x = 15,638,697.96/3,329.94
  6. Step 6: Final answer
    x = 4,696.40

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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.