Home / 4,847.20-6,688.33-2,857.48

Finding the Fourth Proportional to 4,847.20, 6,688.33 and 2,857.48

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Solution

The fourth proportional to 4,847.20, 6,688.33 and 2,857.48 is: 3,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,847.20 : 6,688.33 = 2,857.48 : x
  2. Step 2: Convert to fraction form
    4,847.20/6,688.33 = 2,857.48/x
  3. Step 3: Cross multiply
    4,847.20x = 6,688.33 × 2,857.48
  4. Step 4: Simplify right side
    4,847.20x = 19,111,769.21
  5. Step 5: Solve for x
    x = 19,111,769.21/4,847.20
  6. Step 6: Final answer
    x = 3,942.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.