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Finding the Fourth Proportional to 4,538, 6,810.84 and 2,808.08

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Solution

The fourth proportional to 4,538, 6,810.84 and 2,808.08 is: 4,214.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,538 : 6,810.84 = 2,808.08 : x
  2. Step 2: Convert to fraction form
    4,538/6,810.84 = 2,808.08/x
  3. Step 3: Cross multiply
    4,538x = 6,810.84 × 2,808.08
  4. Step 4: Simplify right side
    4,538x = 19,125,383.59
  5. Step 5: Solve for x
    x = 19,125,383.59/4,538
  6. Step 6: Final answer
    x = 4,214.50

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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.