Home / 4,945.64-6,824.58-2,821.16

Finding the Fourth Proportional to 4,945.64, 6,824.58 and 2,821.16

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Solution

The fourth proportional to 4,945.64, 6,824.58 and 2,821.16 is: 3,892.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.64 : 6,824.58 = 2,821.16 : x
  2. Step 2: Convert to fraction form
    4,945.64/6,824.58 = 2,821.16/x
  3. Step 3: Cross multiply
    4,945.64x = 6,824.58 × 2,821.16
  4. Step 4: Simplify right side
    4,945.64x = 19,253,232.11
  5. Step 5: Solve for x
    x = 19,253,232.11/4,945.64
  6. Step 6: Final answer
    x = 3,892.97

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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.