Home / 5,530.61-7,629.82-3,639.76

Finding the Fourth Proportional to 5,530.61, 7,629.82 and 3,639.76

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Solution

The fourth proportional to 5,530.61, 7,629.82 and 3,639.76 is: 5,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.61 : 7,629.82 = 3,639.76 : x
  2. Step 2: Convert to fraction form
    5,530.61/7,629.82 = 3,639.76/x
  3. Step 3: Cross multiply
    5,530.61x = 7,629.82 × 3,639.76
  4. Step 4: Simplify right side
    5,530.61x = 27,770,713.64
  5. Step 5: Solve for x
    x = 27,770,713.64/5,530.61
  6. Step 6: Final answer
    x = 5,021.27

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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.