Home / 3,951.12-5,450.40-2,459.28

Finding the Fourth Proportional to 3,951.12, 5,450.40 and 2,459.28

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Solution

The fourth proportional to 3,951.12, 5,450.40 and 2,459.28 is: 3,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.12 : 5,450.40 = 2,459.28 : x
  2. Step 2: Convert to fraction form
    3,951.12/5,450.40 = 2,459.28/x
  3. Step 3: Cross multiply
    3,951.12x = 5,450.40 × 2,459.28
  4. Step 4: Simplify right side
    3,951.12x = 13,404,059.71
  5. Step 5: Solve for x
    x = 13,404,059.71/3,951.12
  6. Step 6: Final answer
    x = 3,392.47

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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.