Home / 3,619.58-5,428.74-1,671.62

Finding the Fourth Proportional to 3,619.58, 5,428.74 and 1,671.62

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Solution

The fourth proportional to 3,619.58, 5,428.74 and 1,671.62 is: 2,507.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.58 : 5,428.74 = 1,671.62 : x
  2. Step 2: Convert to fraction form
    3,619.58/5,428.74 = 1,671.62/x
  3. Step 3: Cross multiply
    3,619.58x = 5,428.74 × 1,671.62
  4. Step 4: Simplify right side
    3,619.58x = 9,074,790.36
  5. Step 5: Solve for x
    x = 9,074,790.36/3,619.58
  6. Step 6: Final answer
    x = 2,507.14

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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.