Home / 3,190.07-4,785.37-881.57

Finding the Fourth Proportional to 3,190.07, 4,785.37 and 881.57

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Solution

The fourth proportional to 3,190.07, 4,785.37 and 881.57 is: 1,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.07 : 4,785.37 = 881.57 : x
  2. Step 2: Convert to fraction form
    3,190.07/4,785.37 = 881.57/x
  3. Step 3: Cross multiply
    3,190.07x = 4,785.37 × 881.57
  4. Step 4: Simplify right side
    3,190.07x = 4,218,610.30
  5. Step 5: Solve for x
    x = 4,218,610.30/3,190.07
  6. Step 6: Final answer
    x = 1,322.42

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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.