Home / 4,219.92-6,329.80-1,908.72

Finding the Fourth Proportional to 4,219.92, 6,329.80 and 1,908.72

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Solution

The fourth proportional to 4,219.92, 6,329.80 and 1,908.72 is: 2,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.92 : 6,329.80 = 1,908.72 : x
  2. Step 2: Convert to fraction form
    4,219.92/6,329.80 = 1,908.72/x
  3. Step 3: Cross multiply
    4,219.92x = 6,329.80 × 1,908.72
  4. Step 4: Simplify right side
    4,219.92x = 12,081,815.86
  5. Step 5: Solve for x
    x = 12,081,815.86/4,219.92
  6. Step 6: Final answer
    x = 2,863.04

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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.