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Finding the Fourth Proportional to 2,803.35, 4,204.96 and 855.57

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Solution

The fourth proportional to 2,803.35, 4,204.96 and 855.57 is: 1,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.35 : 4,204.96 = 855.57 : x
  2. Step 2: Convert to fraction form
    2,803.35/4,204.96 = 855.57/x
  3. Step 3: Cross multiply
    2,803.35x = 4,204.96 × 855.57
  4. Step 4: Simplify right side
    2,803.35x = 3,597,635.49
  5. Step 5: Solve for x
    x = 3,597,635.49/2,803.35
  6. Step 6: Final answer
    x = 1,283.33

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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.