Home / 3,123.41-4,685.06-1,274.09

Finding the Fourth Proportional to 3,123.41, 4,685.06 and 1,274.09

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Solution

The fourth proportional to 3,123.41, 4,685.06 and 1,274.09 is: 1,911.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.41 : 4,685.06 = 1,274.09 : x
  2. Step 2: Convert to fraction form
    3,123.41/4,685.06 = 1,274.09/x
  3. Step 3: Cross multiply
    3,123.41x = 4,685.06 × 1,274.09
  4. Step 4: Simplify right side
    3,123.41x = 5,969,202.99
  5. Step 5: Solve for x
    x = 5,969,202.99/3,123.41
  6. Step 6: Final answer
    x = 1,911.12

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1.5x scale

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.