Home / 1,980.14-2,973.24-1,611.41

Finding the Fourth Proportional to 1,980.14, 2,973.24 and 1,611.41

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Solution

The fourth proportional to 1,980.14, 2,973.24 and 1,611.41 is: 2,419.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.14 : 2,973.24 = 1,611.41 : x
  2. Step 2: Convert to fraction form
    1,980.14/2,973.24 = 1,611.41/x
  3. Step 3: Cross multiply
    1,980.14x = 2,973.24 × 1,611.41
  4. Step 4: Simplify right side
    1,980.14x = 4,791,093.80
  5. Step 5: Solve for x
    x = 4,791,093.80/1,980.14
  6. Step 6: Final answer
    x = 2,419.58

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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.