Home / 3,114.27-4,297.20-1,787.72

Finding the Fourth Proportional to 3,114.27, 4,297.20 and 1,787.72

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Solution

The fourth proportional to 3,114.27, 4,297.20 and 1,787.72 is: 2,466.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.27 : 4,297.20 = 1,787.72 : x
  2. Step 2: Convert to fraction form
    3,114.27/4,297.20 = 1,787.72/x
  3. Step 3: Cross multiply
    3,114.27x = 4,297.20 × 1,787.72
  4. Step 4: Simplify right side
    3,114.27x = 7,682,168.90
  5. Step 5: Solve for x
    x = 7,682,168.90/3,114.27
  6. Step 6: Final answer
    x = 2,466.76

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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.