Home / 4,226.40-6,339.84-1,305.12

Finding the Fourth Proportional to 4,226.40, 6,339.84 and 1,305.12

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Solution

The fourth proportional to 4,226.40, 6,339.84 and 1,305.12 is: 1,957.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,226.40 : 6,339.84 = 1,305.12 : x
  2. Step 2: Convert to fraction form
    4,226.40/6,339.84 = 1,305.12/x
  3. Step 3: Cross multiply
    4,226.40x = 6,339.84 × 1,305.12
  4. Step 4: Simplify right side
    4,226.40x = 8,274,251.98
  5. Step 5: Solve for x
    x = 8,274,251.98/4,226.40
  6. Step 6: Final answer
    x = 1,957.75

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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.