Home / 3,413.15-4,710.26-1,921

Finding the Fourth Proportional to 3,413.15, 4,710.26 and 1,921

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Solution

The fourth proportional to 3,413.15, 4,710.26 and 1,921 is: 2,651.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.15 : 4,710.26 = 1,921 : x
  2. Step 2: Convert to fraction form
    3,413.15/4,710.26 = 1,921/x
  3. Step 3: Cross multiply
    3,413.15x = 4,710.26 × 1,921
  4. Step 4: Simplify right side
    3,413.15x = 9,048,409.46
  5. Step 5: Solve for x
    x = 9,048,409.46/3,413.15
  6. Step 6: Final answer
    x = 2,651.04

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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.