Home / 2,643.22-3,649.35-1,648.90

Finding the Fourth Proportional to 2,643.22, 3,649.35 and 1,648.90

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Solution

The fourth proportional to 2,643.22, 3,649.35 and 1,648.90 is: 2,276.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.22 : 3,649.35 = 1,648.90 : x
  2. Step 2: Convert to fraction form
    2,643.22/3,649.35 = 1,648.90/x
  3. Step 3: Cross multiply
    2,643.22x = 3,649.35 × 1,648.90
  4. Step 4: Simplify right side
    2,643.22x = 6,017,413.22
  5. Step 5: Solve for x
    x = 6,017,413.22/2,643.22
  6. Step 6: Final answer
    x = 2,276.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.