Home / 1,861.38-2,785.59-1,571.94

Finding the Fourth Proportional to 1,861.38, 2,785.59 and 1,571.94

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Solution

The fourth proportional to 1,861.38, 2,785.59 and 1,571.94 is: 2,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.38 : 2,785.59 = 1,571.94 : x
  2. Step 2: Convert to fraction form
    1,861.38/2,785.59 = 1,571.94/x
  3. Step 3: Cross multiply
    1,861.38x = 2,785.59 × 1,571.94
  4. Step 4: Simplify right side
    1,861.38x = 4,378,780.34
  5. Step 5: Solve for x
    x = 4,378,780.34/1,861.38
  6. Step 6: Final answer
    x = 2,352.44

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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.