Home / 5,172.12-7,757.60-4,867.56

Finding the Fourth Proportional to 5,172.12, 7,757.60 and 4,867.56

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Solution

The fourth proportional to 5,172.12, 7,757.60 and 4,867.56 is: 7,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.12 : 7,757.60 = 4,867.56 : x
  2. Step 2: Convert to fraction form
    5,172.12/7,757.60 = 4,867.56/x
  3. Step 3: Cross multiply
    5,172.12x = 7,757.60 × 4,867.56
  4. Step 4: Simplify right side
    5,172.12x = 37,760,583.46
  5. Step 5: Solve for x
    x = 37,760,583.46/5,172.12
  6. Step 6: Final answer
    x = 7,300.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.