Home / 3,561.08-5,361.38-2,785.28

Finding the Fourth Proportional to 3,561.08, 5,361.38 and 2,785.28

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Solution

The fourth proportional to 3,561.08, 5,361.38 and 2,785.28 is: 4,193.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.08 : 5,361.38 = 2,785.28 : x
  2. Step 2: Convert to fraction form
    3,561.08/5,361.38 = 2,785.28/x
  3. Step 3: Cross multiply
    3,561.08x = 5,361.38 × 2,785.28
  4. Step 4: Simplify right side
    3,561.08x = 14,932,944.49
  5. Step 5: Solve for x
    x = 14,932,944.49/3,561.08
  6. Step 6: Final answer
    x = 4,193.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.