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Finding the Fourth Proportional to 2,734.21, 4,101.19 and 885.39

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Solution

The fourth proportional to 2,734.21, 4,101.19 and 885.39 is: 1,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734.21 : 4,101.19 = 885.39 : x
  2. Step 2: Convert to fraction form
    2,734.21/4,101.19 = 885.39/x
  3. Step 3: Cross multiply
    2,734.21x = 4,101.19 × 885.39
  4. Step 4: Simplify right side
    2,734.21x = 3,631,170.08
  5. Step 5: Solve for x
    x = 3,631,170.08/2,734.21
  6. Step 6: Final answer
    x = 1,328.05

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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.