Home / 3,611.98-5,419.19-1,531.90

Finding the Fourth Proportional to 3,611.98, 5,419.19 and 1,531.90

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Solution

The fourth proportional to 3,611.98, 5,419.19 and 1,531.90 is: 2,298.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.98 : 5,419.19 = 1,531.90 : x
  2. Step 2: Convert to fraction form
    3,611.98/5,419.19 = 1,531.90/x
  3. Step 3: Cross multiply
    3,611.98x = 5,419.19 × 1,531.90
  4. Step 4: Simplify right side
    3,611.98x = 8,301,657.16
  5. Step 5: Solve for x
    x = 8,301,657.16/3,611.98
  6. Step 6: Final answer
    x = 2,298.37

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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.