Home / 4,121.42-6,177.69-1,782.54

Finding the Fourth Proportional to 4,121.42, 6,177.69 and 1,782.54

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Solution

The fourth proportional to 4,121.42, 6,177.69 and 1,782.54 is: 2,671.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.42 : 6,177.69 = 1,782.54 : x
  2. Step 2: Convert to fraction form
    4,121.42/6,177.69 = 1,782.54/x
  3. Step 3: Cross multiply
    4,121.42x = 6,177.69 × 1,782.54
  4. Step 4: Simplify right side
    4,121.42x = 11,011,979.53
  5. Step 5: Solve for x
    x = 11,011,979.53/4,121.42
  6. Step 6: Final answer
    x = 2,671.89

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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.