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Finding the Fourth Proportional to 6,228.54, 8,606.33 and 4,979.90

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Solution

The fourth proportional to 6,228.54, 8,606.33 and 4,979.90 is: 6,881.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,228.54 : 8,606.33 = 4,979.90 : x
  2. Step 2: Convert to fraction form
    6,228.54/8,606.33 = 4,979.90/x
  3. Step 3: Cross multiply
    6,228.54x = 8,606.33 × 4,979.90
  4. Step 4: Simplify right side
    6,228.54x = 42,858,662.77
  5. Step 5: Solve for x
    x = 42,858,662.77/6,228.54
  6. Step 6: Final answer
    x = 6,881.01

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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.