Home / 2,816.24-4,224.81-841.64

Finding the Fourth Proportional to 2,816.24, 4,224.81 and 841.64

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Solution

The fourth proportional to 2,816.24, 4,224.81 and 841.64 is: 1,262.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.24 : 4,224.81 = 841.64 : x
  2. Step 2: Convert to fraction form
    2,816.24/4,224.81 = 841.64/x
  3. Step 3: Cross multiply
    2,816.24x = 4,224.81 × 841.64
  4. Step 4: Simplify right side
    2,816.24x = 3,555,770.15
  5. Step 5: Solve for x
    x = 3,555,770.15/2,816.24
  6. Step 6: Final answer
    x = 1,262.60

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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.