Home / 3,174.03-4,782.60-2,638.22

Finding the Fourth Proportional to 3,174.03, 4,782.60 and 2,638.22

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Solution

The fourth proportional to 3,174.03, 4,782.60 and 2,638.22 is: 3,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.03 : 4,782.60 = 2,638.22 : x
  2. Step 2: Convert to fraction form
    3,174.03/4,782.60 = 2,638.22/x
  3. Step 3: Cross multiply
    3,174.03x = 4,782.60 × 2,638.22
  4. Step 4: Simplify right side
    3,174.03x = 12,617,527.06
  5. Step 5: Solve for x
    x = 12,617,527.06/3,174.03
  6. Step 6: Final answer
    x = 3,975.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.