Home / 1,608.32-2,413.35-1,120.43

Finding the Fourth Proportional to 1,608.32, 2,413.35 and 1,120.43

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Solution

The fourth proportional to 1,608.32, 2,413.35 and 1,120.43 is: 1,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.32 : 2,413.35 = 1,120.43 : x
  2. Step 2: Convert to fraction form
    1,608.32/2,413.35 = 1,120.43/x
  3. Step 3: Cross multiply
    1,608.32x = 2,413.35 × 1,120.43
  4. Step 4: Simplify right side
    1,608.32x = 2,703,977.67
  5. Step 5: Solve for x
    x = 2,703,977.67/1,608.32
  6. Step 6: Final answer
    x = 1,681.25

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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.