Home / 5,237.78-7,228.14-2,879.96

Finding the Fourth Proportional to 5,237.78, 7,228.14 and 2,879.96

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Solution

The fourth proportional to 5,237.78, 7,228.14 and 2,879.96 is: 3,974.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.78 : 7,228.14 = 2,879.96 : x
  2. Step 2: Convert to fraction form
    5,237.78/7,228.14 = 2,879.96/x
  3. Step 3: Cross multiply
    5,237.78x = 7,228.14 × 2,879.96
  4. Step 4: Simplify right side
    5,237.78x = 20,816,754.07
  5. Step 5: Solve for x
    x = 20,816,754.07/5,237.78
  6. Step 6: Final answer
    x = 3,974.35

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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.