Home / 2,578.24-3,868.67-1,190.01

Finding the Fourth Proportional to 2,578.24, 3,868.67 and 1,190.01

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Solution

The fourth proportional to 2,578.24, 3,868.67 and 1,190.01 is: 1,785.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.24 : 3,868.67 = 1,190.01 : x
  2. Step 2: Convert to fraction form
    2,578.24/3,868.67 = 1,190.01/x
  3. Step 3: Cross multiply
    2,578.24x = 3,868.67 × 1,190.01
  4. Step 4: Simplify right side
    2,578.24x = 4,603,755.99
  5. Step 5: Solve for x
    x = 4,603,755.99/2,578.24
  6. Step 6: Final answer
    x = 1,785.62

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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.