Home / 3,125.09-4,308.72-2,285.12

Finding the Fourth Proportional to 3,125.09, 4,308.72 and 2,285.12

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Solution

The fourth proportional to 3,125.09, 4,308.72 and 2,285.12 is: 3,150.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.09 : 4,308.72 = 2,285.12 : x
  2. Step 2: Convert to fraction form
    3,125.09/4,308.72 = 2,285.12/x
  3. Step 3: Cross multiply
    3,125.09x = 4,308.72 × 2,285.12
  4. Step 4: Simplify right side
    3,125.09x = 9,845,942.25
  5. Step 5: Solve for x
    x = 9,845,942.25/3,125.09
  6. Step 6: Final answer
    x = 3,150.61

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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.