Home / 3,114.80-4,672.20-2,137.94

Finding the Fourth Proportional to 3,114.80, 4,672.20 and 2,137.94

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Solution

The fourth proportional to 3,114.80, 4,672.20 and 2,137.94 is: 3,206.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.80 : 4,672.20 = 2,137.94 : x
  2. Step 2: Convert to fraction form
    3,114.80/4,672.20 = 2,137.94/x
  3. Step 3: Cross multiply
    3,114.80x = 4,672.20 × 2,137.94
  4. Step 4: Simplify right side
    3,114.80x = 9,988,883.27
  5. Step 5: Solve for x
    x = 9,988,883.27/3,114.80
  6. Step 6: Final answer
    x = 3,206.91

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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.