Home / 2,140.03-3,209.19-1,360.54

Finding the Fourth Proportional to 2,140.03, 3,209.19 and 1,360.54

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Solution

The fourth proportional to 2,140.03, 3,209.19 and 1,360.54 is: 2,040.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.03 : 3,209.19 = 1,360.54 : x
  2. Step 2: Convert to fraction form
    2,140.03/3,209.19 = 1,360.54/x
  3. Step 3: Cross multiply
    2,140.03x = 3,209.19 × 1,360.54
  4. Step 4: Simplify right side
    2,140.03x = 4,366,231.36
  5. Step 5: Solve for x
    x = 4,366,231.36/2,140.03
  6. Step 6: Final answer
    x = 2,040.27

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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.