Home / 5,209.72-7,814.27-1,511.87

Finding the Fourth Proportional to 5,209.72, 7,814.27 and 1,511.87

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Solution

The fourth proportional to 5,209.72, 7,814.27 and 1,511.87 is: 2,267.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.72 : 7,814.27 = 1,511.87 : x
  2. Step 2: Convert to fraction form
    5,209.72/7,814.27 = 1,511.87/x
  3. Step 3: Cross multiply
    5,209.72x = 7,814.27 × 1,511.87
  4. Step 4: Simplify right side
    5,209.72x = 11,814,125.09
  5. Step 5: Solve for x
    x = 11,814,125.09/5,209.72
  6. Step 6: Final answer
    x = 2,267.71

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1.5x scale

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.