Home / 3,639.09-5,455.39-1,558.03

Finding the Fourth Proportional to 3,639.09, 5,455.39 and 1,558.03

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Solution

The fourth proportional to 3,639.09, 5,455.39 and 1,558.03 is: 2,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.09 : 5,455.39 = 1,558.03 : x
  2. Step 2: Convert to fraction form
    3,639.09/5,455.39 = 1,558.03/x
  3. Step 3: Cross multiply
    3,639.09x = 5,455.39 × 1,558.03
  4. Step 4: Simplify right side
    3,639.09x = 8,499,661.28
  5. Step 5: Solve for x
    x = 8,499,661.28/3,639.09
  6. Step 6: Final answer
    x = 2,335.66

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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.