Home / 2,822.79-3,895.32-1,563.76

Finding the Fourth Proportional to 2,822.79, 3,895.32 and 1,563.76

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Solution

The fourth proportional to 2,822.79, 3,895.32 and 1,563.76 is: 2,157.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.79 : 3,895.32 = 1,563.76 : x
  2. Step 2: Convert to fraction form
    2,822.79/3,895.32 = 1,563.76/x
  3. Step 3: Cross multiply
    2,822.79x = 3,895.32 × 1,563.76
  4. Step 4: Simplify right side
    2,822.79x = 6,091,345.60
  5. Step 5: Solve for x
    x = 6,091,345.60/2,822.79
  6. Step 6: Final answer
    x = 2,157.92

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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.