Home / 3,952.89-5,455.40-2,274.36

Finding the Fourth Proportional to 3,952.89, 5,455.40 and 2,274.36

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Solution

The fourth proportional to 3,952.89, 5,455.40 and 2,274.36 is: 3,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.89 : 5,455.40 = 2,274.36 : x
  2. Step 2: Convert to fraction form
    3,952.89/5,455.40 = 2,274.36/x
  3. Step 3: Cross multiply
    3,952.89x = 5,455.40 × 2,274.36
  4. Step 4: Simplify right side
    3,952.89x = 12,407,532.17
  5. Step 5: Solve for x
    x = 12,407,532.17/3,952.89
  6. Step 6: Final answer
    x = 3,138.85

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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.