Home / 2,413.56-3,610.80-1,921.50

Finding the Fourth Proportional to 2,413.56, 3,610.80 and 1,921.50

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Solution

The fourth proportional to 2,413.56, 3,610.80 and 1,921.50 is: 2,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,413.56 : 3,610.80 = 1,921.50 : x
  2. Step 2: Convert to fraction form
    2,413.56/3,610.80 = 1,921.50/x
  3. Step 3: Cross multiply
    2,413.56x = 3,610.80 × 1,921.50
  4. Step 4: Simplify right side
    2,413.56x = 6,938,152.20
  5. Step 5: Solve for x
    x = 6,938,152.20/2,413.56
  6. Step 6: Final answer
    x = 2,874.65

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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.