Home / 2,942.88-4,061.28-1,684.12

Finding the Fourth Proportional to 2,942.88, 4,061.28 and 1,684.12

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Solution

The fourth proportional to 2,942.88, 4,061.28 and 1,684.12 is: 2,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.88 : 4,061.28 = 1,684.12 : x
  2. Step 2: Convert to fraction form
    2,942.88/4,061.28 = 1,684.12/x
  3. Step 3: Cross multiply
    2,942.88x = 4,061.28 × 1,684.12
  4. Step 4: Simplify right side
    2,942.88x = 6,839,682.87
  5. Step 5: Solve for x
    x = 6,839,682.87/2,942.88
  6. Step 6: Final answer
    x = 2,324.15

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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.