Home / 2,822.28-3,894.76-1,563.31

Finding the Fourth Proportional to 2,822.28, 3,894.76 and 1,563.31

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Solution

The fourth proportional to 2,822.28, 3,894.76 and 1,563.31 is: 2,157.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.28 : 3,894.76 = 1,563.31 : x
  2. Step 2: Convert to fraction form
    2,822.28/3,894.76 = 1,563.31/x
  3. Step 3: Cross multiply
    2,822.28x = 3,894.76 × 1,563.31
  4. Step 4: Simplify right side
    2,822.28x = 6,088,689.97
  5. Step 5: Solve for x
    x = 6,088,689.97/2,822.28
  6. Step 6: Final answer
    x = 2,157.37

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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.