Home / 4,071.78-6,111.15-1,608.36

Finding the Fourth Proportional to 4,071.78, 6,111.15 and 1,608.36

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Solution

The fourth proportional to 4,071.78, 6,111.15 and 1,608.36 is: 2,413.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,071.78 : 6,111.15 = 1,608.36 : x
  2. Step 2: Convert to fraction form
    4,071.78/6,111.15 = 1,608.36/x
  3. Step 3: Cross multiply
    4,071.78x = 6,111.15 × 1,608.36
  4. Step 4: Simplify right side
    4,071.78x = 9,828,929.21
  5. Step 5: Solve for x
    x = 9,828,929.21/4,071.78
  6. Step 6: Final answer
    x = 2,413.91

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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.