Home / 7,208.85-10,819.35-2,829.38

Finding the Fourth Proportional to 7,208.85, 10,819.35 and 2,829.38

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Solution

The fourth proportional to 7,208.85, 10,819.35 and 2,829.38 is: 4,246.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.85 : 10,819.35 = 2,829.38 : x
  2. Step 2: Convert to fraction form
    7,208.85/10,819.35 = 2,829.38/x
  3. Step 3: Cross multiply
    7,208.85x = 10,819.35 × 2,829.38
  4. Step 4: Simplify right side
    7,208.85x = 30,612,045.43
  5. Step 5: Solve for x
    x = 30,612,045.43/7,208.85
  6. Step 6: Final answer
    x = 4,246.45

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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.