Home / 2,918.52-4,028.19-1,923.89

Finding the Fourth Proportional to 2,918.52, 4,028.19 and 1,923.89

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Solution

The fourth proportional to 2,918.52, 4,028.19 and 1,923.89 is: 2,655.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.52 : 4,028.19 = 1,923.89 : x
  2. Step 2: Convert to fraction form
    2,918.52/4,028.19 = 1,923.89/x
  3. Step 3: Cross multiply
    2,918.52x = 4,028.19 × 1,923.89
  4. Step 4: Simplify right side
    2,918.52x = 7,749,794.46
  5. Step 5: Solve for x
    x = 7,749,794.46/2,918.52
  6. Step 6: Final answer
    x = 2,655.39

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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.