Home / 5,237.87-7,228.07-2,879.99

Finding the Fourth Proportional to 5,237.87, 7,228.07 and 2,879.99

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Solution

The fourth proportional to 5,237.87, 7,228.07 and 2,879.99 is: 3,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.87 : 7,228.07 = 2,879.99 : x
  2. Step 2: Convert to fraction form
    5,237.87/7,228.07 = 2,879.99/x
  3. Step 3: Cross multiply
    5,237.87x = 7,228.07 × 2,879.99
  4. Step 4: Simplify right side
    5,237.87x = 20,816,769.32
  5. Step 5: Solve for x
    x = 20,816,769.32/5,237.87
  6. Step 6: Final answer
    x = 3,974.28

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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.