Home / 2,928.84-4,387.98-1,611.18

Finding the Fourth Proportional to 2,928.84, 4,387.98 and 1,611.18

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Solution

The fourth proportional to 2,928.84, 4,387.98 and 1,611.18 is: 2,413.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.84 : 4,387.98 = 1,611.18 : x
  2. Step 2: Convert to fraction form
    2,928.84/4,387.98 = 1,611.18/x
  3. Step 3: Cross multiply
    2,928.84x = 4,387.98 × 1,611.18
  4. Step 4: Simplify right side
    2,928.84x = 7,069,825.62
  5. Step 5: Solve for x
    x = 7,069,825.62/2,928.84
  6. Step 6: Final answer
    x = 2,413.87

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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.