Home / 2,558.44-3,839.71-1,326.20

Finding the Fourth Proportional to 2,558.44, 3,839.71 and 1,326.20

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Solution

The fourth proportional to 2,558.44, 3,839.71 and 1,326.20 is: 1,990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.44 : 3,839.71 = 1,326.20 : x
  2. Step 2: Convert to fraction form
    2,558.44/3,839.71 = 1,326.20/x
  3. Step 3: Cross multiply
    2,558.44x = 3,839.71 × 1,326.20
  4. Step 4: Simplify right side
    2,558.44x = 5,092,223.40
  5. Step 5: Solve for x
    x = 5,092,223.40/2,558.44
  6. Step 6: Final answer
    x = 1,990.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.