Home / 7,112.43-10,661.04-2,728.71

Finding the Fourth Proportional to 7,112.43, 10,661.04 and 2,728.71

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Solution

The fourth proportional to 7,112.43, 10,661.04 and 2,728.71 is: 4,090.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.43 : 10,661.04 = 2,728.71 : x
  2. Step 2: Convert to fraction form
    7,112.43/10,661.04 = 2,728.71/x
  3. Step 3: Cross multiply
    7,112.43x = 10,661.04 × 2,728.71
  4. Step 4: Simplify right side
    7,112.43x = 29,090,886.46
  5. Step 5: Solve for x
    x = 29,090,886.46/7,112.43
  6. Step 6: Final answer
    x = 4,090.15

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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.