Home / 3,611.64-5,415.61-1,419.17

Finding the Fourth Proportional to 3,611.64, 5,415.61 and 1,419.17

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Solution

The fourth proportional to 3,611.64, 5,415.61 and 1,419.17 is: 2,128.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.64 : 5,415.61 = 1,419.17 : x
  2. Step 2: Convert to fraction form
    3,611.64/5,415.61 = 1,419.17/x
  3. Step 3: Cross multiply
    3,611.64x = 5,415.61 × 1,419.17
  4. Step 4: Simplify right side
    3,611.64x = 7,685,673.74
  5. Step 5: Solve for x
    x = 7,685,673.74/3,611.64
  6. Step 6: Final answer
    x = 2,128.03

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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.