Home / 3,413.28-5,121.54-1,681.50

Finding the Fourth Proportional to 3,413.28, 5,121.54 and 1,681.50

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Solution

The fourth proportional to 3,413.28, 5,121.54 and 1,681.50 is: 2,523.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.28 : 5,121.54 = 1,681.50 : x
  2. Step 2: Convert to fraction form
    3,413.28/5,121.54 = 1,681.50/x
  3. Step 3: Cross multiply
    3,413.28x = 5,121.54 × 1,681.50
  4. Step 4: Simplify right side
    3,413.28x = 8,611,869.51
  5. Step 5: Solve for x
    x = 8,611,869.51/3,413.28
  6. Step 6: Final answer
    x = 2,523.05

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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.