Home / 7,802.22-11,709.48-3,422.70

Finding the Fourth Proportional to 7,802.22, 11,709.48 and 3,422.70

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Solution

The fourth proportional to 7,802.22, 11,709.48 and 3,422.70 is: 5,136.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,802.22 : 11,709.48 = 3,422.70 : x
  2. Step 2: Convert to fraction form
    7,802.22/11,709.48 = 3,422.70/x
  3. Step 3: Cross multiply
    7,802.22x = 11,709.48 × 3,422.70
  4. Step 4: Simplify right side
    7,802.22x = 40,078,037.20
  5. Step 5: Solve for x
    x = 40,078,037.20/7,802.22
  6. Step 6: Final answer
    x = 5,136.75

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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.