Home / 2,271.25-3,413.13-1,985.59

Finding the Fourth Proportional to 2,271.25, 3,413.13 and 1,985.59

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Solution

The fourth proportional to 2,271.25, 3,413.13 and 1,985.59 is: 2,983.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.25 : 3,413.13 = 1,985.59 : x
  2. Step 2: Convert to fraction form
    2,271.25/3,413.13 = 1,985.59/x
  3. Step 3: Cross multiply
    2,271.25x = 3,413.13 × 1,985.59
  4. Step 4: Simplify right side
    2,271.25x = 6,777,076.80
  5. Step 5: Solve for x
    x = 6,777,076.80/2,271.25
  6. Step 6: Final answer
    x = 2,983.85

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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.