Home / 3,190.55-4,785.69-999.23

Finding the Fourth Proportional to 3,190.55, 4,785.69 and 999.23

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Solution

The fourth proportional to 3,190.55, 4,785.69 and 999.23 is: 1,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.55 : 4,785.69 = 999.23 : x
  2. Step 2: Convert to fraction form
    3,190.55/4,785.69 = 999.23/x
  3. Step 3: Cross multiply
    3,190.55x = 4,785.69 × 999.23
  4. Step 4: Simplify right side
    3,190.55x = 4,782,005.02
  5. Step 5: Solve for x
    x = 4,782,005.02/3,190.55
  6. Step 6: Final answer
    x = 1,498.80

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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.