Home / 3,609.61-5,413.49-1,418.35

Finding the Fourth Proportional to 3,609.61, 5,413.49 and 1,418.35

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Solution

The fourth proportional to 3,609.61, 5,413.49 and 1,418.35 is: 2,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.61 : 5,413.49 = 1,418.35 : x
  2. Step 2: Convert to fraction form
    3,609.61/5,413.49 = 1,418.35/x
  3. Step 3: Cross multiply
    3,609.61x = 5,413.49 × 1,418.35
  4. Step 4: Simplify right side
    3,609.61x = 7,678,216.45
  5. Step 5: Solve for x
    x = 7,678,216.45/3,609.61
  6. Step 6: Final answer
    x = 2,127.16

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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.