Home / 3,653.40-5,481.84-1,705.32

Finding the Fourth Proportional to 3,653.40, 5,481.84 and 1,705.32

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Solution

The fourth proportional to 3,653.40, 5,481.84 and 1,705.32 is: 2,558.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.40 : 5,481.84 = 1,705.32 : x
  2. Step 2: Convert to fraction form
    3,653.40/5,481.84 = 1,705.32/x
  3. Step 3: Cross multiply
    3,653.40x = 5,481.84 × 1,705.32
  4. Step 4: Simplify right side
    3,653.40x = 9,348,291.39
  5. Step 5: Solve for x
    x = 9,348,291.39/3,653.40
  6. Step 6: Final answer
    x = 2,558.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.