Home / 4,847.04-6,689.78-2,857.48

Finding the Fourth Proportional to 4,847.04, 6,689.78 and 2,857.48

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Solution

The fourth proportional to 4,847.04, 6,689.78 and 2,857.48 is: 3,943.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,847.04 : 6,689.78 = 2,857.48 : x
  2. Step 2: Convert to fraction form
    4,847.04/6,689.78 = 2,857.48/x
  3. Step 3: Cross multiply
    4,847.04x = 6,689.78 × 2,857.48
  4. Step 4: Simplify right side
    4,847.04x = 19,115,912.55
  5. Step 5: Solve for x
    x = 19,115,912.55/4,847.04
  6. Step 6: Final answer
    x = 3,943.83

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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.