Home / 4,128.19-6,186.80-3,577.79

Finding the Fourth Proportional to 4,128.19, 6,186.80 and 3,577.79

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Solution

The fourth proportional to 4,128.19, 6,186.80 and 3,577.79 is: 5,361.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.19 : 6,186.80 = 3,577.79 : x
  2. Step 2: Convert to fraction form
    4,128.19/6,186.80 = 3,577.79/x
  3. Step 3: Cross multiply
    4,128.19x = 6,186.80 × 3,577.79
  4. Step 4: Simplify right side
    4,128.19x = 22,135,071.17
  5. Step 5: Solve for x
    x = 22,135,071.17/4,128.19
  6. Step 6: Final answer
    x = 5,361.93

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1.5x scale

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.