Home / 2,829.15-4,212.03-2,815.47

Finding the Fourth Proportional to 2,829.15, 4,212.03 and 2,815.47

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Solution

The fourth proportional to 2,829.15, 4,212.03 and 2,815.47 is: 4,191.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.15 : 4,212.03 = 2,815.47 : x
  2. Step 2: Convert to fraction form
    2,829.15/4,212.03 = 2,815.47/x
  3. Step 3: Cross multiply
    2,829.15x = 4,212.03 × 2,815.47
  4. Step 4: Simplify right side
    2,829.15x = 11,858,844.10
  5. Step 5: Solve for x
    x = 11,858,844.10/2,829.15
  6. Step 6: Final answer
    x = 4,191.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.