Home / 7,028.31-9,699.67-3,885.10

Finding the Fourth Proportional to 7,028.31, 9,699.67 and 3,885.10

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Solution

The fourth proportional to 7,028.31, 9,699.67 and 3,885.10 is: 5,361.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.31 : 9,699.67 = 3,885.10 : x
  2. Step 2: Convert to fraction form
    7,028.31/9,699.67 = 3,885.10/x
  3. Step 3: Cross multiply
    7,028.31x = 9,699.67 × 3,885.10
  4. Step 4: Simplify right side
    7,028.31x = 37,684,187.92
  5. Step 5: Solve for x
    x = 37,684,187.92/7,028.31
  6. Step 6: Final answer
    x = 5,361.77

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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.