Home / 2,829.30-4,240.09-2,135.38

Finding the Fourth Proportional to 2,829.30, 4,240.09 and 2,135.38

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Solution

The fourth proportional to 2,829.30, 4,240.09 and 2,135.38 is: 3,200.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.30 : 4,240.09 = 2,135.38 : x
  2. Step 2: Convert to fraction form
    2,829.30/4,240.09 = 2,135.38/x
  3. Step 3: Cross multiply
    2,829.30x = 4,240.09 × 2,135.38
  4. Step 4: Simplify right side
    2,829.30x = 9,054,203.38
  5. Step 5: Solve for x
    x = 9,054,203.38/2,829.30
  6. Step 6: Final answer
    x = 3,200.16

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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.