Home / 2,918.79-4,028.46-1,723.71

Finding the Fourth Proportional to 2,918.79, 4,028.46 and 1,723.71

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Solution

The fourth proportional to 2,918.79, 4,028.46 and 1,723.71 is: 2,379.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.79 : 4,028.46 = 1,723.71 : x
  2. Step 2: Convert to fraction form
    2,918.79/4,028.46 = 1,723.71/x
  3. Step 3: Cross multiply
    2,918.79x = 4,028.46 × 1,723.71
  4. Step 4: Simplify right side
    2,918.79x = 6,943,896.79
  5. Step 5: Solve for x
    x = 6,943,896.79/2,918.79
  6. Step 6: Final answer
    x = 2,379.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.