Home / 4,226.40-6,339.60-1,917.90

Finding the Fourth Proportional to 4,226.40, 6,339.60 and 1,917.90

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Solution

The fourth proportional to 4,226.40, 6,339.60 and 1,917.90 is: 2,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,226.40 : 6,339.60 = 1,917.90 : x
  2. Step 2: Convert to fraction form
    4,226.40/6,339.60 = 1,917.90/x
  3. Step 3: Cross multiply
    4,226.40x = 6,339.60 × 1,917.90
  4. Step 4: Simplify right side
    4,226.40x = 12,158,718.84
  5. Step 5: Solve for x
    x = 12,158,718.84/4,226.40
  6. Step 6: Final answer
    x = 2,876.85

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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.