Home / 5,078.51-7,618.99-1,791.93

Finding the Fourth Proportional to 5,078.51, 7,618.99 and 1,791.93

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Solution

The fourth proportional to 5,078.51, 7,618.99 and 1,791.93 is: 2,688.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.51 : 7,618.99 = 1,791.93 : x
  2. Step 2: Convert to fraction form
    5,078.51/7,618.99 = 1,791.93/x
  3. Step 3: Cross multiply
    5,078.51x = 7,618.99 × 1,791.93
  4. Step 4: Simplify right side
    5,078.51x = 13,652,696.75
  5. Step 5: Solve for x
    x = 13,652,696.75/5,078.51
  6. Step 6: Final answer
    x = 2,688.33

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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.