Home / 3,554.31-4,904.89-1,961.12

Finding the Fourth Proportional to 3,554.31, 4,904.89 and 1,961.12

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Solution

The fourth proportional to 3,554.31, 4,904.89 and 1,961.12 is: 2,706.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.31 : 4,904.89 = 1,961.12 : x
  2. Step 2: Convert to fraction form
    3,554.31/4,904.89 = 1,961.12/x
  3. Step 3: Cross multiply
    3,554.31x = 4,904.89 × 1,961.12
  4. Step 4: Simplify right side
    3,554.31x = 9,619,077.88
  5. Step 5: Solve for x
    x = 9,619,077.88/3,554.31
  6. Step 6: Final answer
    x = 2,706.31

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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.