Home / 3,579.32-4,935.42-2,318.78

Finding the Fourth Proportional to 3,579.32, 4,935.42 and 2,318.78

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Solution

The fourth proportional to 3,579.32, 4,935.42 and 2,318.78 is: 3,197.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.32 : 4,935.42 = 2,318.78 : x
  2. Step 2: Convert to fraction form
    3,579.32/4,935.42 = 2,318.78/x
  3. Step 3: Cross multiply
    3,579.32x = 4,935.42 × 2,318.78
  4. Step 4: Simplify right side
    3,579.32x = 11,444,128.51
  5. Step 5: Solve for x
    x = 11,444,128.51/3,579.32
  6. Step 6: Final answer
    x = 3,197.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.