Home / 3,419.09-4,717.77-1,906.32

Finding the Fourth Proportional to 3,419.09, 4,717.77 and 1,906.32

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Solution

The fourth proportional to 3,419.09, 4,717.77 and 1,906.32 is: 2,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.09 : 4,717.77 = 1,906.32 : x
  2. Step 2: Convert to fraction form
    3,419.09/4,717.77 = 1,906.32/x
  3. Step 3: Cross multiply
    3,419.09x = 4,717.77 × 1,906.32
  4. Step 4: Simplify right side
    3,419.09x = 8,993,579.31
  5. Step 5: Solve for x
    x = 8,993,579.31/3,419.09
  6. Step 6: Final answer
    x = 2,630.40

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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.