Home / 1,984.59-2,738.10-1,321.56

Finding the Fourth Proportional to 1,984.59, 2,738.10 and 1,321.56

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Solution

The fourth proportional to 1,984.59, 2,738.10 and 1,321.56 is: 1,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.59 : 2,738.10 = 1,321.56 : x
  2. Step 2: Convert to fraction form
    1,984.59/2,738.10 = 1,321.56/x
  3. Step 3: Cross multiply
    1,984.59x = 2,738.10 × 1,321.56
  4. Step 4: Simplify right side
    1,984.59x = 3,618,563.44
  5. Step 5: Solve for x
    x = 3,618,563.44/1,984.59
  6. Step 6: Final answer
    x = 1,823.33

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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.