Home / 3,619.15-5,428.26-1,154.21

Finding the Fourth Proportional to 3,619.15, 5,428.26 and 1,154.21

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Solution

The fourth proportional to 3,619.15, 5,428.26 and 1,154.21 is: 1,731.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.15 : 5,428.26 = 1,154.21 : x
  2. Step 2: Convert to fraction form
    3,619.15/5,428.26 = 1,154.21/x
  3. Step 3: Cross multiply
    3,619.15x = 5,428.26 × 1,154.21
  4. Step 4: Simplify right side
    3,619.15x = 6,265,365.55
  5. Step 5: Solve for x
    x = 6,265,365.55/3,619.15
  6. Step 6: Final answer
    x = 1,731.17

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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.