Home / 2,391.12-3,583.68-1,003.20

Finding the Fourth Proportional to 2,391.12, 3,583.68 and 1,003.20

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Solution

The fourth proportional to 2,391.12, 3,583.68 and 1,003.20 is: 1,503.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.12 : 3,583.68 = 1,003.20 : x
  2. Step 2: Convert to fraction form
    2,391.12/3,583.68 = 1,003.20/x
  3. Step 3: Cross multiply
    2,391.12x = 3,583.68 × 1,003.20
  4. Step 4: Simplify right side
    2,391.12x = 3,595,147.78
  5. Step 5: Solve for x
    x = 3,595,147.78/2,391.12
  6. Step 6: Final answer
    x = 1,503.54

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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.