Home / 2,822.17-3,894.54-1,563.22

Finding the Fourth Proportional to 2,822.17, 3,894.54 and 1,563.22

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Solution

The fourth proportional to 2,822.17, 3,894.54 and 1,563.22 is: 2,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.17 : 3,894.54 = 1,563.22 : x
  2. Step 2: Convert to fraction form
    2,822.17/3,894.54 = 1,563.22/x
  3. Step 3: Cross multiply
    2,822.17x = 3,894.54 × 1,563.22
  4. Step 4: Simplify right side
    2,822.17x = 6,088,022.82
  5. Step 5: Solve for x
    x = 6,088,022.82/2,822.17
  6. Step 6: Final answer
    x = 2,157.21

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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.