Home / 3,413.65-5,122.46-1,439.15

Finding the Fourth Proportional to 3,413.65, 5,122.46 and 1,439.15

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Solution

The fourth proportional to 3,413.65, 5,122.46 and 1,439.15 is: 2,159.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.65 : 5,122.46 = 1,439.15 : x
  2. Step 2: Convert to fraction form
    3,413.65/5,122.46 = 1,439.15/x
  3. Step 3: Cross multiply
    3,413.65x = 5,122.46 × 1,439.15
  4. Step 4: Simplify right side
    3,413.65x = 7,372,004.71
  5. Step 5: Solve for x
    x = 7,372,004.71/3,413.65
  6. Step 6: Final answer
    x = 2,159.57

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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.