Home / 3,521.57-5,285.78-1,879.27

Finding the Fourth Proportional to 3,521.57, 5,285.78 and 1,879.27

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Solution

The fourth proportional to 3,521.57, 5,285.78 and 1,879.27 is: 2,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.57 : 5,285.78 = 1,879.27 : x
  2. Step 2: Convert to fraction form
    3,521.57/5,285.78 = 1,879.27/x
  3. Step 3: Cross multiply
    3,521.57x = 5,285.78 × 1,879.27
  4. Step 4: Simplify right side
    3,521.57x = 9,933,398.38
  5. Step 5: Solve for x
    x = 9,933,398.38/3,521.57
  6. Step 6: Final answer
    x = 2,820.73

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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.