Home / 6,824.80-10,220.78-4,742.28

Finding the Fourth Proportional to 6,824.80, 10,220.78 and 4,742.28

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Solution

The fourth proportional to 6,824.80, 10,220.78 and 4,742.28 is: 7,102.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,824.80 : 10,220.78 = 4,742.28 : x
  2. Step 2: Convert to fraction form
    6,824.80/10,220.78 = 4,742.28/x
  3. Step 3: Cross multiply
    6,824.80x = 10,220.78 × 4,742.28
  4. Step 4: Simplify right side
    6,824.80x = 48,469,800.58
  5. Step 5: Solve for x
    x = 48,469,800.58/6,824.80
  6. Step 6: Final answer
    x = 7,102.01

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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.