Home / 5,212.76-7,822.25-4,788.79

Finding the Fourth Proportional to 5,212.76, 7,822.25 and 4,788.79

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Solution

The fourth proportional to 5,212.76, 7,822.25 and 4,788.79 is: 7,186.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.76 : 7,822.25 = 4,788.79 : x
  2. Step 2: Convert to fraction form
    5,212.76/7,822.25 = 4,788.79/x
  3. Step 3: Cross multiply
    5,212.76x = 7,822.25 × 4,788.79
  4. Step 4: Simplify right side
    5,212.76x = 37,459,113.97
  5. Step 5: Solve for x
    x = 37,459,113.97/5,212.76
  6. Step 6: Final answer
    x = 7,186.04

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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.