Home / 7,872.16-11,806.92-2,940.49

Finding the Fourth Proportional to 7,872.16, 11,806.92 and 2,940.49

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Solution

The fourth proportional to 7,872.16, 11,806.92 and 2,940.49 is: 4,410.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.16 : 11,806.92 = 2,940.49 : x
  2. Step 2: Convert to fraction form
    7,872.16/11,806.92 = 2,940.49/x
  3. Step 3: Cross multiply
    7,872.16x = 11,806.92 × 2,940.49
  4. Step 4: Simplify right side
    7,872.16x = 34,718,130.19
  5. Step 5: Solve for x
    x = 34,718,130.19/7,872.16
  6. Step 6: Final answer
    x = 4,410.24

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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.