Home / 3,872.02-5,370.80-3,739.26

Finding the Fourth Proportional to 3,872.02, 5,370.80 and 3,739.26

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Solution

The fourth proportional to 3,872.02, 5,370.80 and 3,739.26 is: 5,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.02 : 5,370.80 = 3,739.26 : x
  2. Step 2: Convert to fraction form
    3,872.02/5,370.80 = 3,739.26/x
  3. Step 3: Cross multiply
    3,872.02x = 5,370.80 × 3,739.26
  4. Step 4: Simplify right side
    3,872.02x = 20,082,794.83
  5. Step 5: Solve for x
    x = 20,082,794.83/3,872.02
  6. Step 6: Final answer
    x = 5,186.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.