Home / 4,991-7,485.23-1,480.19

Finding the Fourth Proportional to 4,991, 7,485.23 and 1,480.19

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Solution

The fourth proportional to 4,991, 7,485.23 and 1,480.19 is: 2,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991 : 7,485.23 = 1,480.19 : x
  2. Step 2: Convert to fraction form
    4,991/7,485.23 = 1,480.19/x
  3. Step 3: Cross multiply
    4,991x = 7,485.23 × 1,480.19
  4. Step 4: Simplify right side
    4,991x = 11,079,555.19
  5. Step 5: Solve for x
    x = 11,079,555.19/4,991
  6. Step 6: Final answer
    x = 2,219.91

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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.