Home / 3,706.72-5,115.07-2,027.80

Finding the Fourth Proportional to 3,706.72, 5,115.07 and 2,027.80

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Solution

The fourth proportional to 3,706.72, 5,115.07 and 2,027.80 is: 2,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.72 : 5,115.07 = 2,027.80 : x
  2. Step 2: Convert to fraction form
    3,706.72/5,115.07 = 2,027.80/x
  3. Step 3: Cross multiply
    3,706.72x = 5,115.07 × 2,027.80
  4. Step 4: Simplify right side
    3,706.72x = 10,372,313.37
  5. Step 5: Solve for x
    x = 10,372,313.37/3,706.72
  6. Step 6: Final answer
    x = 2,798.25

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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.