Home / 3,451.70-5,181.60-3,427.40

Finding the Fourth Proportional to 3,451.70, 5,181.60 and 3,427.40

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Solution

The fourth proportional to 3,451.70, 5,181.60 and 3,427.40 is: 5,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.70 : 5,181.60 = 3,427.40 : x
  2. Step 2: Convert to fraction form
    3,451.70/5,181.60 = 3,427.40/x
  3. Step 3: Cross multiply
    3,451.70x = 5,181.60 × 3,427.40
  4. Step 4: Simplify right side
    3,451.70x = 17,759,415.84
  5. Step 5: Solve for x
    x = 17,759,415.84/3,451.70
  6. Step 6: Final answer
    x = 5,145.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.