Home / 3,190.23-4,785.30-1,890.75

Finding the Fourth Proportional to 3,190.23, 4,785.30 and 1,890.75

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Solution

The fourth proportional to 3,190.23, 4,785.30 and 1,890.75 is: 2,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.23 : 4,785.30 = 1,890.75 : x
  2. Step 2: Convert to fraction form
    3,190.23/4,785.30 = 1,890.75/x
  3. Step 3: Cross multiply
    3,190.23x = 4,785.30 × 1,890.75
  4. Step 4: Simplify right side
    3,190.23x = 9,047,805.98
  5. Step 5: Solve for x
    x = 9,047,805.98/3,190.23
  6. Step 6: Final answer
    x = 2,836.10

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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.