Home / 3,999.42-5,517.90-2,426.40

Finding the Fourth Proportional to 3,999.42, 5,517.90 and 2,426.40

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Solution

The fourth proportional to 3,999.42, 5,517.90 and 2,426.40 is: 3,347.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.42 : 5,517.90 = 2,426.40 : x
  2. Step 2: Convert to fraction form
    3,999.42/5,517.90 = 2,426.40/x
  3. Step 3: Cross multiply
    3,999.42x = 5,517.90 × 2,426.40
  4. Step 4: Simplify right side
    3,999.42x = 13,388,632.56
  5. Step 5: Solve for x
    x = 13,388,632.56/3,999.42
  6. Step 6: Final answer
    x = 3,347.64

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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.