Home / 5,237.96-7,228.24-2,879.78

Finding the Fourth Proportional to 5,237.96, 7,228.24 and 2,879.78

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Solution

The fourth proportional to 5,237.96, 7,228.24 and 2,879.78 is: 3,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.96 : 7,228.24 = 2,879.78 : x
  2. Step 2: Convert to fraction form
    5,237.96/7,228.24 = 2,879.78/x
  3. Step 3: Cross multiply
    5,237.96x = 7,228.24 × 2,879.78
  4. Step 4: Simplify right side
    5,237.96x = 20,815,697.65
  5. Step 5: Solve for x
    x = 20,815,697.65/5,237.96
  6. Step 6: Final answer
    x = 3,974.01

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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.