Home / 3,413.46-5,120.01-1,681.50

Finding the Fourth Proportional to 3,413.46, 5,120.01 and 1,681.50

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Solution

The fourth proportional to 3,413.46, 5,120.01 and 1,681.50 is: 2,522.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.46 : 5,120.01 = 1,681.50 : x
  2. Step 2: Convert to fraction form
    3,413.46/5,120.01 = 1,681.50/x
  3. Step 3: Cross multiply
    3,413.46x = 5,120.01 × 1,681.50
  4. Step 4: Simplify right side
    3,413.46x = 8,609,296.82
  5. Step 5: Solve for x
    x = 8,609,296.82/3,413.46
  6. Step 6: Final answer
    x = 2,522.16

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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.