Home / 5,146.23-7,101.78-2,788.37

Finding the Fourth Proportional to 5,146.23, 7,101.78 and 2,788.37

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Solution

The fourth proportional to 5,146.23, 7,101.78 and 2,788.37 is: 3,847.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.23 : 7,101.78 = 2,788.37 : x
  2. Step 2: Convert to fraction form
    5,146.23/7,101.78 = 2,788.37/x
  3. Step 3: Cross multiply
    5,146.23x = 7,101.78 × 2,788.37
  4. Step 4: Simplify right side
    5,146.23x = 19,802,354.79
  5. Step 5: Solve for x
    x = 19,802,354.79/5,146.23
  6. Step 6: Final answer
    x = 3,847.93

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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.