Home / 3,413.83-5,119.30-1,440.35

Finding the Fourth Proportional to 3,413.83, 5,119.30 and 1,440.35

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Solution

The fourth proportional to 3,413.83, 5,119.30 and 1,440.35 is: 2,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.83 : 5,119.30 = 1,440.35 : x
  2. Step 2: Convert to fraction form
    3,413.83/5,119.30 = 1,440.35/x
  3. Step 3: Cross multiply
    3,413.83x = 5,119.30 × 1,440.35
  4. Step 4: Simplify right side
    3,413.83x = 7,373,569.56
  5. Step 5: Solve for x
    x = 7,373,569.56/3,413.83
  6. Step 6: Final answer
    x = 2,159.91

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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.