Home / 5,309.19-7,963.70-1,413.81

Finding the Fourth Proportional to 5,309.19, 7,963.70 and 1,413.81

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Solution

The fourth proportional to 5,309.19, 7,963.70 and 1,413.81 is: 2,120.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.19 : 7,963.70 = 1,413.81 : x
  2. Step 2: Convert to fraction form
    5,309.19/7,963.70 = 1,413.81/x
  3. Step 3: Cross multiply
    5,309.19x = 7,963.70 × 1,413.81
  4. Step 4: Simplify right side
    5,309.19x = 11,259,151.63
  5. Step 5: Solve for x
    x = 11,259,151.63/5,309.19
  6. Step 6: Final answer
    x = 2,120.69

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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.