Home / 7,172.97-10,755.32-2,785.31

Finding the Fourth Proportional to 7,172.97, 10,755.32 and 2,785.31

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Solution

The fourth proportional to 7,172.97, 10,755.32 and 2,785.31 is: 4,176.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.97 : 10,755.32 = 2,785.31 : x
  2. Step 2: Convert to fraction form
    7,172.97/10,755.32 = 2,785.31/x
  3. Step 3: Cross multiply
    7,172.97x = 10,755.32 × 2,785.31
  4. Step 4: Simplify right side
    7,172.97x = 29,956,832.65
  5. Step 5: Solve for x
    x = 29,956,832.65/7,172.97
  6. Step 6: Final answer
    x = 4,176.35

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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.