Home / 2,192.56-3,290.48-1,039.12

Finding the Fourth Proportional to 2,192.56, 3,290.48 and 1,039.12

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Solution

The fourth proportional to 2,192.56, 3,290.48 and 1,039.12 is: 1,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.56 : 3,290.48 = 1,039.12 : x
  2. Step 2: Convert to fraction form
    2,192.56/3,290.48 = 1,039.12/x
  3. Step 3: Cross multiply
    2,192.56x = 3,290.48 × 1,039.12
  4. Step 4: Simplify right side
    2,192.56x = 3,419,203.58
  5. Step 5: Solve for x
    x = 3,419,203.58/2,192.56
  6. Step 6: Final answer
    x = 1,559.46

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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.