Home / 2,131.92-2,932.80-1,738.08

Finding the Fourth Proportional to 2,131.92, 2,932.80 and 1,738.08

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Solution

The fourth proportional to 2,131.92, 2,932.80 and 1,738.08 is: 2,391.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.92 : 2,932.80 = 1,738.08 : x
  2. Step 2: Convert to fraction form
    2,131.92/2,932.80 = 1,738.08/x
  3. Step 3: Cross multiply
    2,131.92x = 2,932.80 × 1,738.08
  4. Step 4: Simplify right side
    2,131.92x = 5,097,441.02
  5. Step 5: Solve for x
    x = 5,097,441.02/2,131.92
  6. Step 6: Final answer
    x = 2,391.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.