Home / 3,936.96-5,434.88-2,445.89

Finding the Fourth Proportional to 3,936.96, 5,434.88 and 2,445.89

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Solution

The fourth proportional to 3,936.96, 5,434.88 and 2,445.89 is: 3,376.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.96 : 5,434.88 = 2,445.89 : x
  2. Step 2: Convert to fraction form
    3,936.96/5,434.88 = 2,445.89/x
  3. Step 3: Cross multiply
    3,936.96x = 5,434.88 × 2,445.89
  4. Step 4: Simplify right side
    3,936.96x = 13,293,079.24
  5. Step 5: Solve for x
    x = 13,293,079.24/3,936.96
  6. Step 6: Final answer
    x = 3,376.48

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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.