Home / 4,209.49-6,315.86-1,611.82

Finding the Fourth Proportional to 4,209.49, 6,315.86 and 1,611.82

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Solution

The fourth proportional to 4,209.49, 6,315.86 and 1,611.82 is: 2,418.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.49 : 6,315.86 = 1,611.82 : x
  2. Step 2: Convert to fraction form
    4,209.49/6,315.86 = 1,611.82/x
  3. Step 3: Cross multiply
    4,209.49x = 6,315.86 × 1,611.82
  4. Step 4: Simplify right side
    4,209.49x = 10,180,049.28
  5. Step 5: Solve for x
    x = 10,180,049.28/4,209.49
  6. Step 6: Final answer
    x = 2,418.36

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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.