Home / 3,123.36-4,311.36-1,882.08

Finding the Fourth Proportional to 3,123.36, 4,311.36 and 1,882.08

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Solution

The fourth proportional to 3,123.36, 4,311.36 and 1,882.08 is: 2,597.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.36 : 4,311.36 = 1,882.08 : x
  2. Step 2: Convert to fraction form
    3,123.36/4,311.36 = 1,882.08/x
  3. Step 3: Cross multiply
    3,123.36x = 4,311.36 × 1,882.08
  4. Step 4: Simplify right side
    3,123.36x = 8,114,324.43
  5. Step 5: Solve for x
    x = 8,114,324.43/3,123.36
  6. Step 6: Final answer
    x = 2,597.95

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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.