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Finding the Fourth Proportional to 1,234.84, 1,850.16 and 1,079.05

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Solution

The fourth proportional to 1,234.84, 1,850.16 and 1,079.05 is: 1,616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.84 : 1,850.16 = 1,079.05 : x
  2. Step 2: Convert to fraction form
    1,234.84/1,850.16 = 1,079.05/x
  3. Step 3: Cross multiply
    1,234.84x = 1,850.16 × 1,079.05
  4. Step 4: Simplify right side
    1,234.84x = 1,996,409.75
  5. Step 5: Solve for x
    x = 1,996,409.75/1,234.84
  6. Step 6: Final answer
    x = 1,616.74

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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.