Home / 5,209.77-7,814.43-1,511.92

Finding the Fourth Proportional to 5,209.77, 7,814.43 and 1,511.92

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Solution

The fourth proportional to 5,209.77, 7,814.43 and 1,511.92 is: 2,267.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.77 : 7,814.43 = 1,511.92 : x
  2. Step 2: Convert to fraction form
    5,209.77/7,814.43 = 1,511.92/x
  3. Step 3: Cross multiply
    5,209.77x = 7,814.43 × 1,511.92
  4. Step 4: Simplify right side
    5,209.77x = 11,814,793.01
  5. Step 5: Solve for x
    x = 11,814,793.01/5,209.77
  6. Step 6: Final answer
    x = 2,267.81

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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.