Home / 4,991-7,486.19-1,948.37

Finding the Fourth Proportional to 4,991, 7,486.19 and 1,948.37

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Solution

The fourth proportional to 4,991, 7,486.19 and 1,948.37 is: 2,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991 : 7,486.19 = 1,948.37 : x
  2. Step 2: Convert to fraction form
    4,991/7,486.19 = 1,948.37/x
  3. Step 3: Cross multiply
    4,991x = 7,486.19 × 1,948.37
  4. Step 4: Simplify right side
    4,991x = 14,585,858.27
  5. Step 5: Solve for x
    x = 14,585,858.27/4,991
  6. Step 6: Final answer
    x = 2,922.43

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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.