Home / 7,788.89-11,685.12-2,242.28

Finding the Fourth Proportional to 7,788.89, 11,685.12 and 2,242.28

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Solution

The fourth proportional to 7,788.89, 11,685.12 and 2,242.28 is: 3,363.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.89 : 11,685.12 = 2,242.28 : x
  2. Step 2: Convert to fraction form
    7,788.89/11,685.12 = 2,242.28/x
  3. Step 3: Cross multiply
    7,788.89x = 11,685.12 × 2,242.28
  4. Step 4: Simplify right side
    7,788.89x = 26,201,310.87
  5. Step 5: Solve for x
    x = 26,201,310.87/7,788.89
  6. Step 6: Final answer
    x = 3,363.93

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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.