Home / 3,346.96-4,619.38-1,930.40

Finding the Fourth Proportional to 3,346.96, 4,619.38 and 1,930.40

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Solution

The fourth proportional to 3,346.96, 4,619.38 and 1,930.40 is: 2,664.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,346.96 : 4,619.38 = 1,930.40 : x
  2. Step 2: Convert to fraction form
    3,346.96/4,619.38 = 1,930.40/x
  3. Step 3: Cross multiply
    3,346.96x = 4,619.38 × 1,930.40
  4. Step 4: Simplify right side
    3,346.96x = 8,917,245.41
  5. Step 5: Solve for x
    x = 8,917,245.41/3,346.96
  6. Step 6: Final answer
    x = 2,664.28

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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.