Home / 4,081.25-5,630.79-2,288.47

Finding the Fourth Proportional to 4,081.25, 5,630.79 and 2,288.47

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Solution

The fourth proportional to 4,081.25, 5,630.79 and 2,288.47 is: 3,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.25 : 5,630.79 = 2,288.47 : x
  2. Step 2: Convert to fraction form
    4,081.25/5,630.79 = 2,288.47/x
  3. Step 3: Cross multiply
    4,081.25x = 5,630.79 × 2,288.47
  4. Step 4: Simplify right side
    4,081.25x = 12,885,893.99
  5. Step 5: Solve for x
    x = 12,885,893.99/4,081.25
  6. Step 6: Final answer
    x = 3,157.34

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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.