Home / 7,688.28-11,525.46-2,757.12

Finding the Fourth Proportional to 7,688.28, 11,525.46 and 2,757.12

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Solution

The fourth proportional to 7,688.28, 11,525.46 and 2,757.12 is: 4,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.28 : 11,525.46 = 2,757.12 : x
  2. Step 2: Convert to fraction form
    7,688.28/11,525.46 = 2,757.12/x
  3. Step 3: Cross multiply
    7,688.28x = 11,525.46 × 2,757.12
  4. Step 4: Simplify right side
    7,688.28x = 31,777,076.28
  5. Step 5: Solve for x
    x = 31,777,076.28/7,688.28
  6. Step 6: Final answer
    x = 4,133.18

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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.