Home / 2,936.88-4,052.98-1,678.12

Finding the Fourth Proportional to 2,936.88, 4,052.98 and 1,678.12

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Solution

The fourth proportional to 2,936.88, 4,052.98 and 1,678.12 is: 2,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.88 : 4,052.98 = 1,678.12 : x
  2. Step 2: Convert to fraction form
    2,936.88/4,052.98 = 1,678.12/x
  3. Step 3: Cross multiply
    2,936.88x = 4,052.98 × 1,678.12
  4. Step 4: Simplify right side
    2,936.88x = 6,801,386.80
  5. Step 5: Solve for x
    x = 6,801,386.80/2,936.88
  6. Step 6: Final answer
    x = 2,315.85

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1.5x scale

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.