Home / 2,106.05-2,905.76-1,360.04

Finding the Fourth Proportional to 2,106.05, 2,905.76 and 1,360.04

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Solution

The fourth proportional to 2,106.05, 2,905.76 and 1,360.04 is: 1,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.05 : 2,905.76 = 1,360.04 : x
  2. Step 2: Convert to fraction form
    2,106.05/2,905.76 = 1,360.04/x
  3. Step 3: Cross multiply
    2,106.05x = 2,905.76 × 1,360.04
  4. Step 4: Simplify right side
    2,106.05x = 3,951,939.78
  5. Step 5: Solve for x
    x = 3,951,939.78/2,106.05
  6. Step 6: Final answer
    x = 1,876.47

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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.