Home / 3,607.09-5,408.45-1,413.19

Finding the Fourth Proportional to 3,607.09, 5,408.45 and 1,413.19

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Solution

The fourth proportional to 3,607.09, 5,408.45 and 1,413.19 is: 2,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.09 : 5,408.45 = 1,413.19 : x
  2. Step 2: Convert to fraction form
    3,607.09/5,408.45 = 1,413.19/x
  3. Step 3: Cross multiply
    3,607.09x = 5,408.45 × 1,413.19
  4. Step 4: Simplify right side
    3,607.09x = 7,643,160.39
  5. Step 5: Solve for x
    x = 7,643,160.39/3,607.09
  6. Step 6: Final answer
    x = 2,118.93

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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.