Home / 5,403.80-8,105.72-1,508.19

Finding the Fourth Proportional to 5,403.80, 8,105.72 and 1,508.19

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Solution

The fourth proportional to 5,403.80, 8,105.72 and 1,508.19 is: 2,262.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.80 : 8,105.72 = 1,508.19 : x
  2. Step 2: Convert to fraction form
    5,403.80/8,105.72 = 1,508.19/x
  3. Step 3: Cross multiply
    5,403.80x = 8,105.72 × 1,508.19
  4. Step 4: Simplify right side
    5,403.80x = 12,224,958.31
  5. Step 5: Solve for x
    x = 12,224,958.31/5,403.80
  6. Step 6: Final answer
    x = 2,262.29

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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.