Home / 5,170.00-7,138.60-3,973.09

Finding the Fourth Proportional to 5,170.00, 7,138.60 and 3,973.09

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Solution

The fourth proportional to 5,170.00, 7,138.60 and 3,973.09 is: 5,485.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.00 : 7,138.60 = 3,973.09 : x
  2. Step 2: Convert to fraction form
    5,170.00/7,138.60 = 3,973.09/x
  3. Step 3: Cross multiply
    5,170.00x = 7,138.60 × 3,973.09
  4. Step 4: Simplify right side
    5,170.00x = 28,362,254.65
  5. Step 5: Solve for x
    x = 28,362,254.65/5,170.00
  6. Step 6: Final answer
    x = 5,485.93

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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.