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Finding the Fourth Proportional to 2,472, 3,413.92 and 1,739.84

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Solution

The fourth proportional to 2,472, 3,413.92 and 1,739.84 is: 2,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472 : 3,413.92 = 1,739.84 : x
  2. Step 2: Convert to fraction form
    2,472/3,413.92 = 1,739.84/x
  3. Step 3: Cross multiply
    2,472x = 3,413.92 × 1,739.84
  4. Step 4: Simplify right side
    2,472x = 5,939,674.57
  5. Step 5: Solve for x
    x = 5,939,674.57/2,472
  6. Step 6: Final answer
    x = 2,402.78

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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.