Home / 5,558.87-7,667.60-3,318.99

Finding the Fourth Proportional to 5,558.87, 7,667.60 and 3,318.99

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Solution

The fourth proportional to 5,558.87, 7,667.60 and 3,318.99 is: 4,578.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,558.87 : 7,667.60 = 3,318.99 : x
  2. Step 2: Convert to fraction form
    5,558.87/7,667.60 = 3,318.99/x
  3. Step 3: Cross multiply
    5,558.87x = 7,667.60 × 3,318.99
  4. Step 4: Simplify right side
    5,558.87x = 25,448,671.13
  5. Step 5: Solve for x
    x = 25,448,671.13/5,558.87
  6. Step 6: Final answer
    x = 4,578.03

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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.