Home / 7,056.28-9,738.24-3,912.40

Finding the Fourth Proportional to 7,056.28, 9,738.24 and 3,912.40

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Solution

The fourth proportional to 7,056.28, 9,738.24 and 3,912.40 is: 5,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,056.28 : 9,738.24 = 3,912.40 : x
  2. Step 2: Convert to fraction form
    7,056.28/9,738.24 = 3,912.40/x
  3. Step 3: Cross multiply
    7,056.28x = 9,738.24 × 3,912.40
  4. Step 4: Simplify right side
    7,056.28x = 38,099,890.18
  5. Step 5: Solve for x
    x = 38,099,890.18/7,056.28
  6. Step 6: Final answer
    x = 5,399.43

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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.