Home / 4,172.12-5,757.54-2,309.12

Finding the Fourth Proportional to 4,172.12, 5,757.54 and 2,309.12

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Solution

The fourth proportional to 4,172.12, 5,757.54 and 2,309.12 is: 3,186.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.12 : 5,757.54 = 2,309.12 : x
  2. Step 2: Convert to fraction form
    4,172.12/5,757.54 = 2,309.12/x
  3. Step 3: Cross multiply
    4,172.12x = 5,757.54 × 2,309.12
  4. Step 4: Simplify right side
    4,172.12x = 13,294,850.76
  5. Step 5: Solve for x
    x = 13,294,850.76/4,172.12
  6. Step 6: Final answer
    x = 3,186.59

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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.