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Finding the Fourth Proportional to 2,808, 4,206.51 and 2,066.25

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Solution

The fourth proportional to 2,808, 4,206.51 and 2,066.25 is: 3,095.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808 : 4,206.51 = 2,066.25 : x
  2. Step 2: Convert to fraction form
    2,808/4,206.51 = 2,066.25/x
  3. Step 3: Cross multiply
    2,808x = 4,206.51 × 2,066.25
  4. Step 4: Simplify right side
    2,808x = 8,691,701.29
  5. Step 5: Solve for x
    x = 8,691,701.29/2,808
  6. Step 6: Final answer
    x = 3,095.34

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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.