Home / 5,161.48-7,742.22-1,265.85

Finding the Fourth Proportional to 5,161.48, 7,742.22 and 1,265.85

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Solution

The fourth proportional to 5,161.48, 7,742.22 and 1,265.85 is: 1,898.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.48 : 7,742.22 = 1,265.85 : x
  2. Step 2: Convert to fraction form
    5,161.48/7,742.22 = 1,265.85/x
  3. Step 3: Cross multiply
    5,161.48x = 7,742.22 × 1,265.85
  4. Step 4: Simplify right side
    5,161.48x = 9,800,482.86
  5. Step 5: Solve for x
    x = 9,800,482.86/5,161.48
  6. Step 6: Final answer
    x = 1,898.78

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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.