Home / 4,172.35-5,757.85-2,309.35

Finding the Fourth Proportional to 4,172.35, 5,757.85 and 2,309.35

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Solution

The fourth proportional to 4,172.35, 5,757.85 and 2,309.35 is: 3,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.35 : 5,757.85 = 2,309.35 : x
  2. Step 2: Convert to fraction form
    4,172.35/5,757.85 = 2,309.35/x
  3. Step 3: Cross multiply
    4,172.35x = 5,757.85 × 2,309.35
  4. Step 4: Simplify right side
    4,172.35x = 13,296,879.39
  5. Step 5: Solve for x
    x = 13,296,879.39/4,172.35
  6. Step 6: Final answer
    x = 3,186.91

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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.