Home / 3,946.77-5,447.46-2,455.83

Finding the Fourth Proportional to 3,946.77, 5,447.46 and 2,455.83

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Solution

The fourth proportional to 3,946.77, 5,447.46 and 2,455.83 is: 3,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.77 : 5,447.46 = 2,455.83 : x
  2. Step 2: Convert to fraction form
    3,946.77/5,447.46 = 2,455.83/x
  3. Step 3: Cross multiply
    3,946.77x = 5,447.46 × 2,455.83
  4. Step 4: Simplify right side
    3,946.77x = 13,378,035.69
  5. Step 5: Solve for x
    x = 13,378,035.69/3,946.77
  6. Step 6: Final answer
    x = 3,389.62

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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.