Home / 3,190.10-4,775.55-2,806.10

Finding the Fourth Proportional to 3,190.10, 4,775.55 and 2,806.10

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Solution

The fourth proportional to 3,190.10, 4,775.55 and 2,806.10 is: 4,200.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.10 : 4,775.55 = 2,806.10 : x
  2. Step 2: Convert to fraction form
    3,190.10/4,775.55 = 2,806.10/x
  3. Step 3: Cross multiply
    3,190.10x = 4,775.55 × 2,806.10
  4. Step 4: Simplify right side
    3,190.10x = 13,400,670.86
  5. Step 5: Solve for x
    x = 13,400,670.86/3,190.10
  6. Step 6: Final answer
    x = 4,200.71

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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.