Home / 6,912.28-9,539.04-3,768.64

Finding the Fourth Proportional to 6,912.28, 9,539.04 and 3,768.64

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Solution

The fourth proportional to 6,912.28, 9,539.04 and 3,768.64 is: 5,200.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.28 : 9,539.04 = 3,768.64 : x
  2. Step 2: Convert to fraction form
    6,912.28/9,539.04 = 3,768.64/x
  3. Step 3: Cross multiply
    6,912.28x = 9,539.04 × 3,768.64
  4. Step 4: Simplify right side
    6,912.28x = 35,949,207.71
  5. Step 5: Solve for x
    x = 35,949,207.71/6,912.28
  6. Step 6: Final answer
    x = 5,200.77

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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.