Home / 4,918.16-6,786.24-3,149.40

Finding the Fourth Proportional to 4,918.16, 6,786.24 and 3,149.40

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Solution

The fourth proportional to 4,918.16, 6,786.24 and 3,149.40 is: 4,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.16 : 6,786.24 = 3,149.40 : x
  2. Step 2: Convert to fraction form
    4,918.16/6,786.24 = 3,149.40/x
  3. Step 3: Cross multiply
    4,918.16x = 6,786.24 × 3,149.40
  4. Step 4: Simplify right side
    4,918.16x = 21,372,584.26
  5. Step 5: Solve for x
    x = 21,372,584.26/4,918.16
  6. Step 6: Final answer
    x = 4,345.65

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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.