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Finding the Fourth Proportional to 2,873.96, 4,285.79 and 2,847.68

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Solution

The fourth proportional to 2,873.96, 4,285.79 and 2,847.68 is: 4,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.96 : 4,285.79 = 2,847.68 : x
  2. Step 2: Convert to fraction form
    2,873.96/4,285.79 = 2,847.68/x
  3. Step 3: Cross multiply
    2,873.96x = 4,285.79 × 2,847.68
  4. Step 4: Simplify right side
    2,873.96x = 12,204,554.94
  5. Step 5: Solve for x
    x = 12,204,554.94/2,873.96
  6. Step 6: Final answer
    x = 4,246.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.