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Finding the Fourth Proportional to 2,451.66, 3,677.85 and 808.38

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Solution

The fourth proportional to 2,451.66, 3,677.85 and 808.38 is: 1,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.66 : 3,677.85 = 808.38 : x
  2. Step 2: Convert to fraction form
    2,451.66/3,677.85 = 808.38/x
  3. Step 3: Cross multiply
    2,451.66x = 3,677.85 × 808.38
  4. Step 4: Simplify right side
    2,451.66x = 2,973,100.38
  5. Step 5: Solve for x
    x = 2,973,100.38/2,451.66
  6. Step 6: Final answer
    x = 1,212.69

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1.5x scale

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.