Home / 1,611.12-2,405.73-1,519.86

Finding the Fourth Proportional to 1,611.12, 2,405.73 and 1,519.86

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Solution

The fourth proportional to 1,611.12, 2,405.73 and 1,519.86 is: 2,269.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.12 : 2,405.73 = 1,519.86 : x
  2. Step 2: Convert to fraction form
    1,611.12/2,405.73 = 1,519.86/x
  3. Step 3: Cross multiply
    1,611.12x = 2,405.73 × 1,519.86
  4. Step 4: Simplify right side
    1,611.12x = 3,656,372.80
  5. Step 5: Solve for x
    x = 3,656,372.80/1,611.12
  6. Step 6: Final answer
    x = 2,269.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.