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Finding the Fourth Proportional to 2,850.84, 4,278.12 and 1,553.16

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Solution

The fourth proportional to 2,850.84, 4,278.12 and 1,553.16 is: 2,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.84 : 4,278.12 = 1,553.16 : x
  2. Step 2: Convert to fraction form
    2,850.84/4,278.12 = 1,553.16/x
  3. Step 3: Cross multiply
    2,850.84x = 4,278.12 × 1,553.16
  4. Step 4: Simplify right side
    2,850.84x = 6,644,604.86
  5. Step 5: Solve for x
    x = 6,644,604.86/2,850.84
  6. Step 6: Final answer
    x = 2,330.75

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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.