Home / 3,946.56-5,435.18-3,860.44

Finding the Fourth Proportional to 3,946.56, 5,435.18 and 3,860.44

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Solution

The fourth proportional to 3,946.56, 5,435.18 and 3,860.44 is: 5,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.56 : 5,435.18 = 3,860.44 : x
  2. Step 2: Convert to fraction form
    3,946.56/5,435.18 = 3,860.44/x
  3. Step 3: Cross multiply
    3,946.56x = 5,435.18 × 3,860.44
  4. Step 4: Simplify right side
    3,946.56x = 20,982,187.58
  5. Step 5: Solve for x
    x = 20,982,187.58/3,946.56
  6. Step 6: Final answer
    x = 5,316.58

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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.