Home / 7,190.76-10,785.60-1,997.04

Finding the Fourth Proportional to 7,190.76, 10,785.60 and 1,997.04

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Solution

The fourth proportional to 7,190.76, 10,785.60 and 1,997.04 is: 2,995.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.76 : 10,785.60 = 1,997.04 : x
  2. Step 2: Convert to fraction form
    7,190.76/10,785.60 = 1,997.04/x
  3. Step 3: Cross multiply
    7,190.76x = 10,785.60 × 1,997.04
  4. Step 4: Simplify right side
    7,190.76x = 21,539,274.62
  5. Step 5: Solve for x
    x = 21,539,274.62/7,190.76
  6. Step 6: Final answer
    x = 2,995.41

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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.