Home / 7,028.88-9,700.05-3,885.27

Finding the Fourth Proportional to 7,028.88, 9,700.05 and 3,885.27

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Solution

The fourth proportional to 7,028.88, 9,700.05 and 3,885.27 is: 5,361.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.88 : 9,700.05 = 3,885.27 : x
  2. Step 2: Convert to fraction form
    7,028.88/9,700.05 = 3,885.27/x
  3. Step 3: Cross multiply
    7,028.88x = 9,700.05 × 3,885.27
  4. Step 4: Simplify right side
    7,028.88x = 37,687,313.26
  5. Step 5: Solve for x
    x = 37,687,313.26/7,028.88
  6. Step 6: Final answer
    x = 5,361.78

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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.