Home / 4,172.31-5,758.43-2,379.79

Finding the Fourth Proportional to 4,172.31, 5,758.43 and 2,379.79

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Solution

The fourth proportional to 4,172.31, 5,758.43 and 2,379.79 is: 3,284.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.31 : 5,758.43 = 2,379.79 : x
  2. Step 2: Convert to fraction form
    4,172.31/5,758.43 = 2,379.79/x
  3. Step 3: Cross multiply
    4,172.31x = 5,758.43 × 2,379.79
  4. Step 4: Simplify right side
    4,172.31x = 13,703,813.44
  5. Step 5: Solve for x
    x = 13,703,813.44/4,172.31
  6. Step 6: Final answer
    x = 3,284.47

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1.5x scale

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.