Home / 5,208.71-7,814.27-1,511.31

Finding the Fourth Proportional to 5,208.71, 7,814.27 and 1,511.31

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Solution

The fourth proportional to 5,208.71, 7,814.27 and 1,511.31 is: 2,267.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.71 : 7,814.27 = 1,511.31 : x
  2. Step 2: Convert to fraction form
    5,208.71/7,814.27 = 1,511.31/x
  3. Step 3: Cross multiply
    5,208.71x = 7,814.27 × 1,511.31
  4. Step 4: Simplify right side
    5,208.71x = 11,809,773.52
  5. Step 5: Solve for x
    x = 11,809,773.52/5,208.71
  6. Step 6: Final answer
    x = 2,267.31

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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.