Home / 2,734.11-3,768.21-1,977.84

Finding the Fourth Proportional to 2,734.11, 3,768.21 and 1,977.84

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Solution

The fourth proportional to 2,734.11, 3,768.21 and 1,977.84 is: 2,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734.11 : 3,768.21 = 1,977.84 : x
  2. Step 2: Convert to fraction form
    2,734.11/3,768.21 = 1,977.84/x
  3. Step 3: Cross multiply
    2,734.11x = 3,768.21 × 1,977.84
  4. Step 4: Simplify right side
    2,734.11x = 7,452,916.47
  5. Step 5: Solve for x
    x = 7,452,916.47/2,734.11
  6. Step 6: Final answer
    x = 2,725.90

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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.