Home / 1,984.36-2,738.19-1,145.01

Finding the Fourth Proportional to 1,984.36, 2,738.19 and 1,145.01

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Solution

The fourth proportional to 1,984.36, 2,738.19 and 1,145.01 is: 1,579.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.36 : 2,738.19 = 1,145.01 : x
  2. Step 2: Convert to fraction form
    1,984.36/2,738.19 = 1,145.01/x
  3. Step 3: Cross multiply
    1,984.36x = 2,738.19 × 1,145.01
  4. Step 4: Simplify right side
    1,984.36x = 3,135,268.85
  5. Step 5: Solve for x
    x = 3,135,268.85/1,984.36
  6. Step 6: Final answer
    x = 1,579.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.