Home / 3,554.58-4,905.34-1,982.78

Finding the Fourth Proportional to 3,554.58, 4,905.34 and 1,982.78

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Solution

The fourth proportional to 3,554.58, 4,905.34 and 1,982.78 is: 2,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.58 : 4,905.34 = 1,982.78 : x
  2. Step 2: Convert to fraction form
    3,554.58/4,905.34 = 1,982.78/x
  3. Step 3: Cross multiply
    3,554.58x = 4,905.34 × 1,982.78
  4. Step 4: Simplify right side
    3,554.58x = 9,726,210.05
  5. Step 5: Solve for x
    x = 9,726,210.05/3,554.58
  6. Step 6: Final answer
    x = 2,736.25

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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.