Home / 2,119.94-3,176.22-1,146.70

Finding the Fourth Proportional to 2,119.94, 3,176.22 and 1,146.70

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Solution

The fourth proportional to 2,119.94, 3,176.22 and 1,146.70 is: 1,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.94 : 3,176.22 = 1,146.70 : x
  2. Step 2: Convert to fraction form
    2,119.94/3,176.22 = 1,146.70/x
  3. Step 3: Cross multiply
    2,119.94x = 3,176.22 × 1,146.70
  4. Step 4: Simplify right side
    2,119.94x = 3,642,171.47
  5. Step 5: Solve for x
    x = 3,642,171.47/2,119.94
  6. Step 6: Final answer
    x = 1,718.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.