Home / 3,226.12-4,840.26-1,278.88

Finding the Fourth Proportional to 3,226.12, 4,840.26 and 1,278.88

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Solution

The fourth proportional to 3,226.12, 4,840.26 and 1,278.88 is: 1,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.12 : 4,840.26 = 1,278.88 : x
  2. Step 2: Convert to fraction form
    3,226.12/4,840.26 = 1,278.88/x
  3. Step 3: Cross multiply
    3,226.12x = 4,840.26 × 1,278.88
  4. Step 4: Simplify right side
    3,226.12x = 6,190,111.71
  5. Step 5: Solve for x
    x = 6,190,111.71/3,226.12
  6. Step 6: Final answer
    x = 1,918.75

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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.