Home / 2,960.16-4,083.66-1,912.56

Finding the Fourth Proportional to 2,960.16, 4,083.66 and 1,912.56

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Solution

The fourth proportional to 2,960.16, 4,083.66 and 1,912.56 is: 2,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.16 : 4,083.66 = 1,912.56 : x
  2. Step 2: Convert to fraction form
    2,960.16/4,083.66 = 1,912.56/x
  3. Step 3: Cross multiply
    2,960.16x = 4,083.66 × 1,912.56
  4. Step 4: Simplify right side
    2,960.16x = 7,810,244.77
  5. Step 5: Solve for x
    x = 7,810,244.77/2,960.16
  6. Step 6: Final answer
    x = 2,638.45

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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.