Home / 7,382.26-11,072.35-2,117.72

Finding the Fourth Proportional to 7,382.26, 11,072.35 and 2,117.72

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Solution

The fourth proportional to 7,382.26, 11,072.35 and 2,117.72 is: 3,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.26 : 11,072.35 = 2,117.72 : x
  2. Step 2: Convert to fraction form
    7,382.26/11,072.35 = 2,117.72/x
  3. Step 3: Cross multiply
    7,382.26x = 11,072.35 × 2,117.72
  4. Step 4: Simplify right side
    7,382.26x = 23,448,159.43
  5. Step 5: Solve for x
    x = 23,448,159.43/7,382.26
  6. Step 6: Final answer
    x = 3,176.29

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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.