Home / 2,686.44-3,708.32-2,406.20

Finding the Fourth Proportional to 2,686.44, 3,708.32 and 2,406.20

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Solution

The fourth proportional to 2,686.44, 3,708.32 and 2,406.20 is: 3,321.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.44 : 3,708.32 = 2,406.20 : x
  2. Step 2: Convert to fraction form
    2,686.44/3,708.32 = 2,406.20/x
  3. Step 3: Cross multiply
    2,686.44x = 3,708.32 × 2,406.20
  4. Step 4: Simplify right side
    2,686.44x = 8,922,959.58
  5. Step 5: Solve for x
    x = 8,922,959.58/2,686.44
  6. Step 6: Final answer
    x = 3,321.48

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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.