Home / 3,460.40-5,190.64-1,512.12

Finding the Fourth Proportional to 3,460.40, 5,190.64 and 1,512.12

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Solution

The fourth proportional to 3,460.40, 5,190.64 and 1,512.12 is: 2,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460.40 : 5,190.64 = 1,512.12 : x
  2. Step 2: Convert to fraction form
    3,460.40/5,190.64 = 1,512.12/x
  3. Step 3: Cross multiply
    3,460.40x = 5,190.64 × 1,512.12
  4. Step 4: Simplify right side
    3,460.40x = 7,848,870.56
  5. Step 5: Solve for x
    x = 7,848,870.56/3,460.40
  6. Step 6: Final answer
    x = 2,268.20

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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.