Home / 3,946.76-5,447.43-2,455.82

Finding the Fourth Proportional to 3,946.76, 5,447.43 and 2,455.82

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Solution

The fourth proportional to 3,946.76, 5,447.43 and 2,455.82 is: 3,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.76 : 5,447.43 = 2,455.82 : x
  2. Step 2: Convert to fraction form
    3,946.76/5,447.43 = 2,455.82/x
  3. Step 3: Cross multiply
    3,946.76x = 5,447.43 × 2,455.82
  4. Step 4: Simplify right side
    3,946.76x = 13,377,880.31
  5. Step 5: Solve for x
    x = 13,377,880.31/3,946.76
  6. Step 6: Final answer
    x = 3,389.59

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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.