Home / 3,505.63-4,837.75-1,912.28

Finding the Fourth Proportional to 3,505.63, 4,837.75 and 1,912.28

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Solution

The fourth proportional to 3,505.63, 4,837.75 and 1,912.28 is: 2,638.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.63 : 4,837.75 = 1,912.28 : x
  2. Step 2: Convert to fraction form
    3,505.63/4,837.75 = 1,912.28/x
  3. Step 3: Cross multiply
    3,505.63x = 4,837.75 × 1,912.28
  4. Step 4: Simplify right side
    3,505.63x = 9,251,103.60
  5. Step 5: Solve for x
    x = 9,251,103.60/3,505.63
  6. Step 6: Final answer
    x = 2,638.93

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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.