Home / 3,226.69-4,840.64-1,279.05

Finding the Fourth Proportional to 3,226.69, 4,840.64 and 1,279.05

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Solution

The fourth proportional to 3,226.69, 4,840.64 and 1,279.05 is: 1,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.69 : 4,840.64 = 1,279.05 : x
  2. Step 2: Convert to fraction form
    3,226.69/4,840.64 = 1,279.05/x
  3. Step 3: Cross multiply
    3,226.69x = 4,840.64 × 1,279.05
  4. Step 4: Simplify right side
    3,226.69x = 6,191,420.59
  5. Step 5: Solve for x
    x = 6,191,420.59/3,226.69
  6. Step 6: Final answer
    x = 1,918.81

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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.