Home / 2,946.72-4,414.32-2,121.12

Finding the Fourth Proportional to 2,946.72, 4,414.32 and 2,121.12

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Solution

The fourth proportional to 2,946.72, 4,414.32 and 2,121.12 is: 3,177.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.72 : 4,414.32 = 2,121.12 : x
  2. Step 2: Convert to fraction form
    2,946.72/4,414.32 = 2,121.12/x
  3. Step 3: Cross multiply
    2,946.72x = 4,414.32 × 2,121.12
  4. Step 4: Simplify right side
    2,946.72x = 9,363,302.44
  5. Step 5: Solve for x
    x = 9,363,302.44/2,946.72
  6. Step 6: Final answer
    x = 3,177.53

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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.