Home / 1,948.81-2,918.92-1,611.43

Finding the Fourth Proportional to 1,948.81, 2,918.92 and 1,611.43

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Solution

The fourth proportional to 1,948.81, 2,918.92 and 1,611.43 is: 2,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.81 : 2,918.92 = 1,611.43 : x
  2. Step 2: Convert to fraction form
    1,948.81/2,918.92 = 1,611.43/x
  3. Step 3: Cross multiply
    1,948.81x = 2,918.92 × 1,611.43
  4. Step 4: Simplify right side
    1,948.81x = 4,703,635.26
  5. Step 5: Solve for x
    x = 4,703,635.26/1,948.81
  6. Step 6: Final answer
    x = 2,413.59

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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.