Home / 3,946.74-5,445.42-2,685.54

Finding the Fourth Proportional to 3,946.74, 5,445.42 and 2,685.54

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Solution

The fourth proportional to 3,946.74, 5,445.42 and 2,685.54 is: 3,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.74 : 5,445.42 = 2,685.54 : x
  2. Step 2: Convert to fraction form
    3,946.74/5,445.42 = 2,685.54/x
  3. Step 3: Cross multiply
    3,946.74x = 5,445.42 × 2,685.54
  4. Step 4: Simplify right side
    3,946.74x = 14,623,893.23
  5. Step 5: Solve for x
    x = 14,623,893.23/3,946.74
  6. Step 6: Final answer
    x = 3,705.31

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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.