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Finding the Fourth Proportional to 2,452.16, 3,678.84 and 808.63

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Solution

The fourth proportional to 2,452.16, 3,678.84 and 808.63 is: 1,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,452.16 : 3,678.84 = 808.63 : x
  2. Step 2: Convert to fraction form
    2,452.16/3,678.84 = 808.63/x
  3. Step 3: Cross multiply
    2,452.16x = 3,678.84 × 808.63
  4. Step 4: Simplify right side
    2,452.16x = 2,974,811.19
  5. Step 5: Solve for x
    x = 2,974,811.19/2,452.16
  6. Step 6: Final answer
    x = 1,213.14

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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.