Home / 4,760.45-7,142.39-2,127.74

Finding the Fourth Proportional to 4,760.45, 7,142.39 and 2,127.74

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Solution

The fourth proportional to 4,760.45, 7,142.39 and 2,127.74 is: 3,192.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,760.45 : 7,142.39 = 2,127.74 : x
  2. Step 2: Convert to fraction form
    4,760.45/7,142.39 = 2,127.74/x
  3. Step 3: Cross multiply
    4,760.45x = 7,142.39 × 2,127.74
  4. Step 4: Simplify right side
    4,760.45x = 15,197,104.54
  5. Step 5: Solve for x
    x = 15,197,104.54/4,760.45
  6. Step 6: Final answer
    x = 3,192.37

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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.