Home / 7,172.96-10,755.25-2,785.32

Finding the Fourth Proportional to 7,172.96, 10,755.25 and 2,785.32

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Solution

The fourth proportional to 7,172.96, 10,755.25 and 2,785.32 is: 4,176.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.96 : 10,755.25 = 2,785.32 : x
  2. Step 2: Convert to fraction form
    7,172.96/10,755.25 = 2,785.32/x
  3. Step 3: Cross multiply
    7,172.96x = 10,755.25 × 2,785.32
  4. Step 4: Simplify right side
    7,172.96x = 29,956,805.97
  5. Step 5: Solve for x
    x = 29,956,805.97/7,172.96
  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.