Home / 5,387.05-8,085.45-2,269.36

Finding the Fourth Proportional to 5,387.05, 8,085.45 and 2,269.36

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Solution

The fourth proportional to 5,387.05, 8,085.45 and 2,269.36 is: 3,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.05 : 8,085.45 = 2,269.36 : x
  2. Step 2: Convert to fraction form
    5,387.05/8,085.45 = 2,269.36/x
  3. Step 3: Cross multiply
    5,387.05x = 8,085.45 × 2,269.36
  4. Step 4: Simplify right side
    5,387.05x = 18,348,796.81
  5. Step 5: Solve for x
    x = 18,348,796.81/5,387.05
  6. Step 6: Final answer
    x = 3,406.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.