Home / 4,900.24-6,760.47-3,131.56

Finding the Fourth Proportional to 4,900.24, 6,760.47 and 3,131.56

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Solution

The fourth proportional to 4,900.24, 6,760.47 and 3,131.56 is: 4,320.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900.24 : 6,760.47 = 3,131.56 : x
  2. Step 2: Convert to fraction form
    4,900.24/6,760.47 = 3,131.56/x
  3. Step 3: Cross multiply
    4,900.24x = 6,760.47 × 3,131.56
  4. Step 4: Simplify right side
    4,900.24x = 21,170,817.43
  5. Step 5: Solve for x
    x = 21,170,817.43/4,900.24
  6. Step 6: Final answer
    x = 4,320.36

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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.