Home / 1,984.22-2,738.23-1,087.97

Finding the Fourth Proportional to 1,984.22, 2,738.23 and 1,087.97

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Solution

The fourth proportional to 1,984.22, 2,738.23 and 1,087.97 is: 1,501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.22 : 2,738.23 = 1,087.97 : x
  2. Step 2: Convert to fraction form
    1,984.22/2,738.23 = 1,087.97/x
  3. Step 3: Cross multiply
    1,984.22x = 2,738.23 × 1,087.97
  4. Step 4: Simplify right side
    1,984.22x = 2,979,125.01
  5. Step 5: Solve for x
    x = 2,979,125.01/1,984.22
  6. Step 6: Final answer
    x = 1,501.41

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1.5x scale

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.