Home / 3,609.08-5,413.49-1,387.34

Finding the Fourth Proportional to 3,609.08, 5,413.49 and 1,387.34

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Solution

The fourth proportional to 3,609.08, 5,413.49 and 1,387.34 is: 2,080.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.08 : 5,413.49 = 1,387.34 : x
  2. Step 2: Convert to fraction form
    3,609.08/5,413.49 = 1,387.34/x
  3. Step 3: Cross multiply
    3,609.08x = 5,413.49 × 1,387.34
  4. Step 4: Simplify right side
    3,609.08x = 7,510,351.22
  5. Step 5: Solve for x
    x = 7,510,351.22/3,609.08
  6. Step 6: Final answer
    x = 2,080.96

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1.5x scale

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.