Home / 3,914.28-5,399.90-3,466.61

Finding the Fourth Proportional to 3,914.28, 5,399.90 and 3,466.61

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Solution

The fourth proportional to 3,914.28, 5,399.90 and 3,466.61 is: 4,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.28 : 5,399.90 = 3,466.61 : x
  2. Step 2: Convert to fraction form
    3,914.28/5,399.90 = 3,466.61/x
  3. Step 3: Cross multiply
    3,914.28x = 5,399.90 × 3,466.61
  4. Step 4: Simplify right side
    3,914.28x = 18,719,303.01
  5. Step 5: Solve for x
    x = 18,719,303.01/3,914.28
  6. Step 6: Final answer
    x = 4,782.31

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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.