Home / 3,807.99-5,255.78-2,236.10

Finding the Fourth Proportional to 3,807.99, 5,255.78 and 2,236.10

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Solution

The fourth proportional to 3,807.99, 5,255.78 and 2,236.10 is: 3,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.99 : 5,255.78 = 2,236.10 : x
  2. Step 2: Convert to fraction form
    3,807.99/5,255.78 = 2,236.10/x
  3. Step 3: Cross multiply
    3,807.99x = 5,255.78 × 2,236.10
  4. Step 4: Simplify right side
    3,807.99x = 11,752,412.20
  5. Step 5: Solve for x
    x = 11,752,412.20/3,807.99
  6. Step 6: Final answer
    x = 3,086.25

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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.