Home / 3,431.19-4,735.18-2,086.41

Finding the Fourth Proportional to 3,431.19, 4,735.18 and 2,086.41

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Solution

The fourth proportional to 3,431.19, 4,735.18 and 2,086.41 is: 2,879.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.19 : 4,735.18 = 2,086.41 : x
  2. Step 2: Convert to fraction form
    3,431.19/4,735.18 = 2,086.41/x
  3. Step 3: Cross multiply
    3,431.19x = 4,735.18 × 2,086.41
  4. Step 4: Simplify right side
    3,431.19x = 9,879,535.53
  5. Step 5: Solve for x
    x = 9,879,535.53/3,431.19
  6. Step 6: Final answer
    x = 2,879.33

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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.