Home / 2,936.71-4,052.80-1,677.90

Finding the Fourth Proportional to 2,936.71, 4,052.80 and 1,677.90

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Solution

The fourth proportional to 2,936.71, 4,052.80 and 1,677.90 is: 2,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.71 : 4,052.80 = 1,677.90 : x
  2. Step 2: Convert to fraction form
    2,936.71/4,052.80 = 1,677.90/x
  3. Step 3: Cross multiply
    2,936.71x = 4,052.80 × 1,677.90
  4. Step 4: Simplify right side
    2,936.71x = 6,800,193.12
  5. Step 5: Solve for x
    x = 6,800,193.12/2,936.71
  6. Step 6: Final answer
    x = 2,315.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.