Home / 2,986.57-4,121.34-1,660.24

Finding the Fourth Proportional to 2,986.57, 4,121.34 and 1,660.24

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Solution

The fourth proportional to 2,986.57, 4,121.34 and 1,660.24 is: 2,291.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.57 : 4,121.34 = 1,660.24 : x
  2. Step 2: Convert to fraction form
    2,986.57/4,121.34 = 1,660.24/x
  3. Step 3: Cross multiply
    2,986.57x = 4,121.34 × 1,660.24
  4. Step 4: Simplify right side
    2,986.57x = 6,842,413.52
  5. Step 5: Solve for x
    x = 6,842,413.52/2,986.57
  6. Step 6: Final answer
    x = 2,291.06

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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.