Home / 2,721.79-4,082.68-1,942.16

Finding the Fourth Proportional to 2,721.79, 4,082.68 and 1,942.16

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Solution

The fourth proportional to 2,721.79, 4,082.68 and 1,942.16 is: 2,913.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.79 : 4,082.68 = 1,942.16 : x
  2. Step 2: Convert to fraction form
    2,721.79/4,082.68 = 1,942.16/x
  3. Step 3: Cross multiply
    2,721.79x = 4,082.68 × 1,942.16
  4. Step 4: Simplify right side
    2,721.79x = 7,929,220.98
  5. Step 5: Solve for x
    x = 7,929,220.98/2,721.79
  6. Step 6: Final answer
    x = 2,913.24

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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.