Home / 5,491.52-8,237.26-1,387.52

Finding the Fourth Proportional to 5,491.52, 8,237.26 and 1,387.52

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Solution

The fourth proportional to 5,491.52, 8,237.26 and 1,387.52 is: 2,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.52 : 8,237.26 = 1,387.52 : x
  2. Step 2: Convert to fraction form
    5,491.52/8,237.26 = 1,387.52/x
  3. Step 3: Cross multiply
    5,491.52x = 8,237.26 × 1,387.52
  4. Step 4: Simplify right side
    5,491.52x = 11,429,363.00
  5. Step 5: Solve for x
    x = 11,429,363.00/5,491.52
  6. Step 6: Final answer
    x = 2,081.27

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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.