Home / 3,721.68-5,582.28-1,413.12

Finding the Fourth Proportional to 3,721.68, 5,582.28 and 1,413.12

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Solution

The fourth proportional to 3,721.68, 5,582.28 and 1,413.12 is: 2,119.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.68 : 5,582.28 = 1,413.12 : x
  2. Step 2: Convert to fraction form
    3,721.68/5,582.28 = 1,413.12/x
  3. Step 3: Cross multiply
    3,721.68x = 5,582.28 × 1,413.12
  4. Step 4: Simplify right side
    3,721.68x = 7,888,431.51
  5. Step 5: Solve for x
    x = 7,888,431.51/3,721.68
  6. Step 6: Final answer
    x = 2,119.59

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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.