Home / 3,909.33-5,394.34-2,397.56

Finding the Fourth Proportional to 3,909.33, 5,394.34 and 2,397.56

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Solution

The fourth proportional to 3,909.33, 5,394.34 and 2,397.56 is: 3,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.33 : 5,394.34 = 2,397.56 : x
  2. Step 2: Convert to fraction form
    3,909.33/5,394.34 = 2,397.56/x
  3. Step 3: Cross multiply
    3,909.33x = 5,394.34 × 2,397.56
  4. Step 4: Simplify right side
    3,909.33x = 12,933,253.81
  5. Step 5: Solve for x
    x = 12,933,253.81/3,909.33
  6. Step 6: Final answer
    x = 3,308.30

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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.