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Finding the Fourth Proportional to 4,932.86, 6,807.95 and 2,808.91

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Solution

The fourth proportional to 4,932.86, 6,807.95 and 2,808.91 is: 3,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,932.86 : 6,807.95 = 2,808.91 : x
  2. Step 2: Convert to fraction form
    4,932.86/6,807.95 = 2,808.91/x
  3. Step 3: Cross multiply
    4,932.86x = 6,807.95 × 2,808.91
  4. Step 4: Simplify right side
    4,932.86x = 19,122,918.83
  5. Step 5: Solve for x
    x = 19,122,918.83/4,932.86
  6. Step 6: Final answer
    x = 3,876.64

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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.