Home / 4,187.22-6,277.78-2,105.72

Finding the Fourth Proportional to 4,187.22, 6,277.78 and 2,105.72

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Solution

The fourth proportional to 4,187.22, 6,277.78 and 2,105.72 is: 3,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.22 : 6,277.78 = 2,105.72 : x
  2. Step 2: Convert to fraction form
    4,187.22/6,277.78 = 2,105.72/x
  3. Step 3: Cross multiply
    4,187.22x = 6,277.78 × 2,105.72
  4. Step 4: Simplify right side
    4,187.22x = 13,219,246.90
  5. Step 5: Solve for x
    x = 13,219,246.90/4,187.22
  6. Step 6: Final answer
    x = 3,157.05

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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.