Home / 2,488.38-3,433.96-1,440.44

Finding the Fourth Proportional to 2,488.38, 3,433.96 and 1,440.44

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Solution

The fourth proportional to 2,488.38, 3,433.96 and 1,440.44 is: 1,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.38 : 3,433.96 = 1,440.44 : x
  2. Step 2: Convert to fraction form
    2,488.38/3,433.96 = 1,440.44/x
  3. Step 3: Cross multiply
    2,488.38x = 3,433.96 × 1,440.44
  4. Step 4: Simplify right side
    2,488.38x = 4,946,413.34
  5. Step 5: Solve for x
    x = 4,946,413.34/2,488.38
  6. Step 6: Final answer
    x = 1,987.80

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1.5x scale

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.