Home / 3,554.72-4,905.68-1,982.88

Finding the Fourth Proportional to 3,554.72, 4,905.68 and 1,982.88

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Solution

The fourth proportional to 3,554.72, 4,905.68 and 1,982.88 is: 2,736.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.72 : 4,905.68 = 1,982.88 : x
  2. Step 2: Convert to fraction form
    3,554.72/4,905.68 = 1,982.88/x
  3. Step 3: Cross multiply
    3,554.72x = 4,905.68 × 1,982.88
  4. Step 4: Simplify right side
    3,554.72x = 9,727,374.76
  5. Step 5: Solve for x
    x = 9,727,374.76/3,554.72
  6. Step 6: Final answer
    x = 2,736.47

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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.