Home / 3,878.64-5,806.44-2,507.76

Finding the Fourth Proportional to 3,878.64, 5,806.44 and 2,507.76

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Solution

The fourth proportional to 3,878.64, 5,806.44 and 2,507.76 is: 3,754.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.64 : 5,806.44 = 2,507.76 : x
  2. Step 2: Convert to fraction form
    3,878.64/5,806.44 = 2,507.76/x
  3. Step 3: Cross multiply
    3,878.64x = 5,806.44 × 2,507.76
  4. Step 4: Simplify right side
    3,878.64x = 14,561,157.97
  5. Step 5: Solve for x
    x = 14,561,157.97/3,878.64
  6. Step 6: Final answer
    x = 3,754.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.