Home / 1,984.24-2,738.11-1,087.84

Finding the Fourth Proportional to 1,984.24, 2,738.11 and 1,087.84

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Solution

The fourth proportional to 1,984.24, 2,738.11 and 1,087.84 is: 1,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.24 : 2,738.11 = 1,087.84 : x
  2. Step 2: Convert to fraction form
    1,984.24/2,738.11 = 1,087.84/x
  3. Step 3: Cross multiply
    1,984.24x = 2,738.11 × 1,087.84
  4. Step 4: Simplify right side
    1,984.24x = 2,978,610.88
  5. Step 5: Solve for x
    x = 2,978,610.88/1,984.24
  6. Step 6: Final answer
    x = 1,501.13

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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.