Home / 2,943.78-4,413.51-1,643.46

Finding the Fourth Proportional to 2,943.78, 4,413.51 and 1,643.46

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Solution

The fourth proportional to 2,943.78, 4,413.51 and 1,643.46 is: 2,463.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.78 : 4,413.51 = 1,643.46 : x
  2. Step 2: Convert to fraction form
    2,943.78/4,413.51 = 1,643.46/x
  3. Step 3: Cross multiply
    2,943.78x = 4,413.51 × 1,643.46
  4. Step 4: Simplify right side
    2,943.78x = 7,253,427.14
  5. Step 5: Solve for x
    x = 7,253,427.14/2,943.78
  6. Step 6: Final answer
    x = 2,463.98

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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.