Home / 2,131.74-3,190.32-2,083.14

Finding the Fourth Proportional to 2,131.74, 3,190.32 and 2,083.14

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Solution

The fourth proportional to 2,131.74, 3,190.32 and 2,083.14 is: 3,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.74 : 3,190.32 = 2,083.14 : x
  2. Step 2: Convert to fraction form
    2,131.74/3,190.32 = 2,083.14/x
  3. Step 3: Cross multiply
    2,131.74x = 3,190.32 × 2,083.14
  4. Step 4: Simplify right side
    2,131.74x = 6,645,883.20
  5. Step 5: Solve for x
    x = 6,645,883.20/2,131.74
  6. Step 6: Final answer
    x = 3,117.59

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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.