Home / 2,945.02-4,413.38-2,119.40

Finding the Fourth Proportional to 2,945.02, 4,413.38 and 2,119.40

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Solution

The fourth proportional to 2,945.02, 4,413.38 and 2,119.40 is: 3,176.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.02 : 4,413.38 = 2,119.40 : x
  2. Step 2: Convert to fraction form
    2,945.02/4,413.38 = 2,119.40/x
  3. Step 3: Cross multiply
    2,945.02x = 4,413.38 × 2,119.40
  4. Step 4: Simplify right side
    2,945.02x = 9,353,717.57
  5. Step 5: Solve for x
    x = 9,353,717.57/2,945.02
  6. Step 6: Final answer
    x = 3,176.11

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1.5x scale

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.