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Finding the Fourth Proportional to 3,481.84, 4,805.04 and 2,085.04

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Solution

The fourth proportional to 3,481.84, 4,805.04 and 2,085.04 is: 2,877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.84 : 4,805.04 = 2,085.04 : x
  2. Step 2: Convert to fraction form
    3,481.84/4,805.04 = 2,085.04/x
  3. Step 3: Cross multiply
    3,481.84x = 4,805.04 × 2,085.04
  4. Step 4: Simplify right side
    3,481.84x = 10,018,700.60
  5. Step 5: Solve for x
    x = 10,018,700.60/3,481.84
  6. Step 6: Final answer
    x = 2,877.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.