Home / 4,128.65-6,186.50-3,193.89

Finding the Fourth Proportional to 4,128.65, 6,186.50 and 3,193.89

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Solution

The fourth proportional to 4,128.65, 6,186.50 and 3,193.89 is: 4,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.65 : 6,186.50 = 3,193.89 : x
  2. Step 2: Convert to fraction form
    4,128.65/6,186.50 = 3,193.89/x
  3. Step 3: Cross multiply
    4,128.65x = 6,186.50 × 3,193.89
  4. Step 4: Simplify right side
    4,128.65x = 19,758,969.55
  5. Step 5: Solve for x
    x = 19,758,969.55/4,128.65
  6. Step 6: Final answer
    x = 4,785.82

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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.