Home / 2,982.12-4,107.60-2,509.44

Finding the Fourth Proportional to 2,982.12, 4,107.60 and 2,509.44

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Solution

The fourth proportional to 2,982.12, 4,107.60 and 2,509.44 is: 3,456.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.12 : 4,107.60 = 2,509.44 : x
  2. Step 2: Convert to fraction form
    2,982.12/4,107.60 = 2,509.44/x
  3. Step 3: Cross multiply
    2,982.12x = 4,107.60 × 2,509.44
  4. Step 4: Simplify right side
    2,982.12x = 10,307,775.74
  5. Step 5: Solve for x
    x = 10,307,775.74/2,982.12
  6. Step 6: Final answer
    x = 3,456.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.