Home / 5,149.02-7,106.41-3,260.78

Finding the Fourth Proportional to 5,149.02, 7,106.41 and 3,260.78

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Solution

The fourth proportional to 5,149.02, 7,106.41 and 3,260.78 is: 4,500.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.02 : 7,106.41 = 3,260.78 : x
  2. Step 2: Convert to fraction form
    5,149.02/7,106.41 = 3,260.78/x
  3. Step 3: Cross multiply
    5,149.02x = 7,106.41 × 3,260.78
  4. Step 4: Simplify right side
    5,149.02x = 23,172,413.68
  5. Step 5: Solve for x
    x = 23,172,413.68/5,149.02
  6. Step 6: Final answer
    x = 4,500.35

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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.