Home / 2,185.17-3,276.14-1,319.28

Finding the Fourth Proportional to 2,185.17, 3,276.14 and 1,319.28

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Solution

The fourth proportional to 2,185.17, 3,276.14 and 1,319.28 is: 1,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.17 : 3,276.14 = 1,319.28 : x
  2. Step 2: Convert to fraction form
    2,185.17/3,276.14 = 1,319.28/x
  3. Step 3: Cross multiply
    2,185.17x = 3,276.14 × 1,319.28
  4. Step 4: Simplify right side
    2,185.17x = 4,322,139.38
  5. Step 5: Solve for x
    x = 4,322,139.38/2,185.17
  6. Step 6: Final answer
    x = 1,977.94

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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.