Home / 4,142.84-6,205.86-1,918.53

Finding the Fourth Proportional to 4,142.84, 6,205.86 and 1,918.53

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Solution

The fourth proportional to 4,142.84, 6,205.86 and 1,918.53 is: 2,873.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.84 : 6,205.86 = 1,918.53 : x
  2. Step 2: Convert to fraction form
    4,142.84/6,205.86 = 1,918.53/x
  3. Step 3: Cross multiply
    4,142.84x = 6,205.86 × 1,918.53
  4. Step 4: Simplify right side
    4,142.84x = 11,906,128.59
  5. Step 5: Solve for x
    x = 11,906,128.59/4,142.84
  6. Step 6: Final answer
    x = 2,873.91

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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.