Home / 3,947.06-5,926.43-2,638.98

Finding the Fourth Proportional to 3,947.06, 5,926.43 and 2,638.98

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Solution

The fourth proportional to 3,947.06, 5,926.43 and 2,638.98 is: 3,962.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.06 : 5,926.43 = 2,638.98 : x
  2. Step 2: Convert to fraction form
    3,947.06/5,926.43 = 2,638.98/x
  3. Step 3: Cross multiply
    3,947.06x = 5,926.43 × 2,638.98
  4. Step 4: Simplify right side
    3,947.06x = 15,639,730.24
  5. Step 5: Solve for x
    x = 15,639,730.24/3,947.06
  6. Step 6: Final answer
    x = 3,962.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.