Home / 3,900.68-5,850.14-1,127.34

Finding the Fourth Proportional to 3,900.68, 5,850.14 and 1,127.34

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Solution

The fourth proportional to 3,900.68, 5,850.14 and 1,127.34 is: 1,690.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.68 : 5,850.14 = 1,127.34 : x
  2. Step 2: Convert to fraction form
    3,900.68/5,850.14 = 1,127.34/x
  3. Step 3: Cross multiply
    3,900.68x = 5,850.14 × 1,127.34
  4. Step 4: Simplify right side
    3,900.68x = 6,595,096.83
  5. Step 5: Solve for x
    x = 6,595,096.83/3,900.68
  6. Step 6: Final answer
    x = 1,690.76

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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.