Home / 2,308.58-3,189.21-1,997.54

Finding the Fourth Proportional to 2,308.58, 3,189.21 and 1,997.54

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Solution

The fourth proportional to 2,308.58, 3,189.21 and 1,997.54 is: 2,759.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.58 : 3,189.21 = 1,997.54 : x
  2. Step 2: Convert to fraction form
    2,308.58/3,189.21 = 1,997.54/x
  3. Step 3: Cross multiply
    2,308.58x = 3,189.21 × 1,997.54
  4. Step 4: Simplify right side
    2,308.58x = 6,370,574.54
  5. Step 5: Solve for x
    x = 6,370,574.54/2,308.58
  6. Step 6: Final answer
    x = 2,759.52

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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.