Home / 1,610.80-2,413.04-1,439.20

Finding the Fourth Proportional to 1,610.80, 2,413.04 and 1,439.20

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Solution

The fourth proportional to 1,610.80, 2,413.04 and 1,439.20 is: 2,155.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.80 : 2,413.04 = 1,439.20 : x
  2. Step 2: Convert to fraction form
    1,610.80/2,413.04 = 1,439.20/x
  3. Step 3: Cross multiply
    1,610.80x = 2,413.04 × 1,439.20
  4. Step 4: Simplify right side
    1,610.80x = 3,472,847.17
  5. Step 5: Solve for x
    x = 3,472,847.17/1,610.80
  6. Step 6: Final answer
    x = 2,155.98

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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.