Home / 5,389.67-8,067.79-2,918.36

Finding the Fourth Proportional to 5,389.67, 8,067.79 and 2,918.36

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Solution

The fourth proportional to 5,389.67, 8,067.79 and 2,918.36 is: 4,368.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.67 : 8,067.79 = 2,918.36 : x
  2. Step 2: Convert to fraction form
    5,389.67/8,067.79 = 2,918.36/x
  3. Step 3: Cross multiply
    5,389.67x = 8,067.79 × 2,918.36
  4. Step 4: Simplify right side
    5,389.67x = 23,544,667.99
  5. Step 5: Solve for x
    x = 23,544,667.99/5,389.67
  6. Step 6: Final answer
    x = 4,368.48

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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.