Home / 1,679.38-2,521.90-1,095.37

Finding the Fourth Proportional to 1,679.38, 2,521.90 and 1,095.37

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Solution

The fourth proportional to 1,679.38, 2,521.90 and 1,095.37 is: 1,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.38 : 2,521.90 = 1,095.37 : x
  2. Step 2: Convert to fraction form
    1,679.38/2,521.90 = 1,095.37/x
  3. Step 3: Cross multiply
    1,679.38x = 2,521.90 × 1,095.37
  4. Step 4: Simplify right side
    1,679.38x = 2,762,413.60
  5. Step 5: Solve for x
    x = 2,762,413.60/1,679.38
  6. Step 6: Final answer
    x = 1,644.90

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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.