Home / 4,861.91-7,287.10-2,783.36

Finding the Fourth Proportional to 4,861.91, 7,287.10 and 2,783.36

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Solution

The fourth proportional to 4,861.91, 7,287.10 and 2,783.36 is: 4,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,861.91 : 7,287.10 = 2,783.36 : x
  2. Step 2: Convert to fraction form
    4,861.91/7,287.10 = 2,783.36/x
  3. Step 3: Cross multiply
    4,861.91x = 7,287.10 × 2,783.36
  4. Step 4: Simplify right side
    4,861.91x = 20,282,633.92
  5. Step 5: Solve for x
    x = 20,282,633.92/4,861.91
  6. Step 6: Final answer
    x = 4,171.74

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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.