Home / 3,086.41-4,626.54-1,991.54

Finding the Fourth Proportional to 3,086.41, 4,626.54 and 1,991.54

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Solution

The fourth proportional to 3,086.41, 4,626.54 and 1,991.54 is: 2,985.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.41 : 4,626.54 = 1,991.54 : x
  2. Step 2: Convert to fraction form
    3,086.41/4,626.54 = 1,991.54/x
  3. Step 3: Cross multiply
    3,086.41x = 4,626.54 × 1,991.54
  4. Step 4: Simplify right side
    3,086.41x = 9,213,929.51
  5. Step 5: Solve for x
    x = 9,213,929.51/3,086.41
  6. Step 6: Final answer
    x = 2,985.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.