Home / 3,413.60-4,710.42-1,921.28

Finding the Fourth Proportional to 3,413.60, 4,710.42 and 1,921.28

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Solution

The fourth proportional to 3,413.60, 4,710.42 and 1,921.28 is: 2,651.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.60 : 4,710.42 = 1,921.28 : x
  2. Step 2: Convert to fraction form
    3,413.60/4,710.42 = 1,921.28/x
  3. Step 3: Cross multiply
    3,413.60x = 4,710.42 × 1,921.28
  4. Step 4: Simplify right side
    3,413.60x = 9,050,035.74
  5. Step 5: Solve for x
    x = 9,050,035.74/3,413.60
  6. Step 6: Final answer
    x = 2,651.17

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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.