Home / 3,111.45-4,293.91-1,695.25

Finding the Fourth Proportional to 3,111.45, 4,293.91 and 1,695.25

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Solution

The fourth proportional to 3,111.45, 4,293.91 and 1,695.25 is: 2,339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.45 : 4,293.91 = 1,695.25 : x
  2. Step 2: Convert to fraction form
    3,111.45/4,293.91 = 1,695.25/x
  3. Step 3: Cross multiply
    3,111.45x = 4,293.91 × 1,695.25
  4. Step 4: Simplify right side
    3,111.45x = 7,279,240.83
  5. Step 5: Solve for x
    x = 7,279,240.83/3,111.45
  6. Step 6: Final answer
    x = 2,339.50

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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.