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Finding the Fourth Proportional to 5,004.78, 6,908.07 and 3,015.02

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Solution

The fourth proportional to 5,004.78, 6,908.07 and 3,015.02 is: 4,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,004.78 : 6,908.07 = 3,015.02 : x
  2. Step 2: Convert to fraction form
    5,004.78/6,908.07 = 3,015.02/x
  3. Step 3: Cross multiply
    5,004.78x = 6,908.07 × 3,015.02
  4. Step 4: Simplify right side
    5,004.78x = 20,827,969.21
  5. Step 5: Solve for x
    x = 20,827,969.21/5,004.78
  6. Step 6: Final answer
    x = 4,161.62

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Why These Related Problems?

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