Home / 3,097.38-4,274.46-1,918.56

Finding the Fourth Proportional to 3,097.38, 4,274.46 and 1,918.56

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Solution

The fourth proportional to 3,097.38, 4,274.46 and 1,918.56 is: 2,647.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.38 : 4,274.46 = 1,918.56 : x
  2. Step 2: Convert to fraction form
    3,097.38/4,274.46 = 1,918.56/x
  3. Step 3: Cross multiply
    3,097.38x = 4,274.46 × 1,918.56
  4. Step 4: Simplify right side
    3,097.38x = 8,200,807.98
  5. Step 5: Solve for x
    x = 8,200,807.98/3,097.38
  6. Step 6: Final answer
    x = 2,647.66

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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.