Home / 3,747.85-5,172.05-2,069.31

Finding the Fourth Proportional to 3,747.85, 5,172.05 and 2,069.31

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Solution

The fourth proportional to 3,747.85, 5,172.05 and 2,069.31 is: 2,855.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.85 : 5,172.05 = 2,069.31 : x
  2. Step 2: Convert to fraction form
    3,747.85/5,172.05 = 2,069.31/x
  3. Step 3: Cross multiply
    3,747.85x = 5,172.05 × 2,069.31
  4. Step 4: Simplify right side
    3,747.85x = 10,702,579.96
  5. Step 5: Solve for x
    x = 10,702,579.96/3,747.85
  6. Step 6: Final answer
    x = 2,855.66

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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.