Home / 4,912.38-6,779.36-2,896.47

Finding the Fourth Proportional to 4,912.38, 6,779.36 and 2,896.47

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Solution

The fourth proportional to 4,912.38, 6,779.36 and 2,896.47 is: 3,997.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.38 : 6,779.36 = 2,896.47 : x
  2. Step 2: Convert to fraction form
    4,912.38/6,779.36 = 2,896.47/x
  3. Step 3: Cross multiply
    4,912.38x = 6,779.36 × 2,896.47
  4. Step 4: Simplify right side
    4,912.38x = 19,636,220.10
  5. Step 5: Solve for x
    x = 19,636,220.10/4,912.38
  6. Step 6: Final answer
    x = 3,997.29

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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.