Home / 3,911.19-5,866.56-1,719.93

Finding the Fourth Proportional to 3,911.19, 5,866.56 and 1,719.93

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Solution

The fourth proportional to 3,911.19, 5,866.56 and 1,719.93 is: 2,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.19 : 5,866.56 = 1,719.93 : x
  2. Step 2: Convert to fraction form
    3,911.19/5,866.56 = 1,719.93/x
  3. Step 3: Cross multiply
    3,911.19x = 5,866.56 × 1,719.93
  4. Step 4: Simplify right side
    3,911.19x = 10,090,072.54
  5. Step 5: Solve for x
    x = 10,090,072.54/3,911.19
  6. Step 6: Final answer
    x = 2,579.80

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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.