Home / 5,269.96-7,272.64-2,912.05

Finding the Fourth Proportional to 5,269.96, 7,272.64 and 2,912.05

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Solution

The fourth proportional to 5,269.96, 7,272.64 and 2,912.05 is: 4,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.96 : 7,272.64 = 2,912.05 : x
  2. Step 2: Convert to fraction form
    5,269.96/7,272.64 = 2,912.05/x
  3. Step 3: Cross multiply
    5,269.96x = 7,272.64 × 2,912.05
  4. Step 4: Simplify right side
    5,269.96x = 21,178,291.31
  5. Step 5: Solve for x
    x = 21,178,291.31/5,269.96
  6. Step 6: Final answer
    x = 4,018.68

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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.