Home / 3,515.72-5,273.60-1,785.56

Finding the Fourth Proportional to 3,515.72, 5,273.60 and 1,785.56

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Solution

The fourth proportional to 3,515.72, 5,273.60 and 1,785.56 is: 2,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.72 : 5,273.60 = 1,785.56 : x
  2. Step 2: Convert to fraction form
    3,515.72/5,273.60 = 1,785.56/x
  3. Step 3: Cross multiply
    3,515.72x = 5,273.60 × 1,785.56
  4. Step 4: Simplify right side
    3,515.72x = 9,416,293.92
  5. Step 5: Solve for x
    x = 9,416,293.92/3,515.72
  6. Step 6: Final answer
    x = 2,678.34

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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.