Home / 3,112.23-4,288.97-2,226.50

Finding the Fourth Proportional to 3,112.23, 4,288.97 and 2,226.50

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Solution

The fourth proportional to 3,112.23, 4,288.97 and 2,226.50 is: 3,068.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.23 : 4,288.97 = 2,226.50 : x
  2. Step 2: Convert to fraction form
    3,112.23/4,288.97 = 2,226.50/x
  3. Step 3: Cross multiply
    3,112.23x = 4,288.97 × 2,226.50
  4. Step 4: Simplify right side
    3,112.23x = 9,549,375.83
  5. Step 5: Solve for x
    x = 9,549,375.83/3,112.23
  6. Step 6: Final answer
    x = 3,068.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.