Home / 3,190.59-4,785.57-999.34

Finding the Fourth Proportional to 3,190.59, 4,785.57 and 999.34

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Solution

The fourth proportional to 3,190.59, 4,785.57 and 999.34 is: 1,498.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.59 : 4,785.57 = 999.34 : x
  2. Step 2: Convert to fraction form
    3,190.59/4,785.57 = 999.34/x
  3. Step 3: Cross multiply
    3,190.59x = 4,785.57 × 999.34
  4. Step 4: Simplify right side
    3,190.59x = 4,782,399.56
  5. Step 5: Solve for x
    x = 4,782,399.56/3,190.59
  6. Step 6: Final answer
    x = 1,498.91

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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.