Home / 2,115.20-3,168.48-1,346.24

Finding the Fourth Proportional to 2,115.20, 3,168.48 and 1,346.24

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Solution

The fourth proportional to 2,115.20, 3,168.48 and 1,346.24 is: 2,016.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.20 : 3,168.48 = 1,346.24 : x
  2. Step 2: Convert to fraction form
    2,115.20/3,168.48 = 1,346.24/x
  3. Step 3: Cross multiply
    2,115.20x = 3,168.48 × 1,346.24
  4. Step 4: Simplify right side
    2,115.20x = 4,265,534.52
  5. Step 5: Solve for x
    x = 4,265,534.52/2,115.20
  6. Step 6: Final answer
    x = 2,016.61

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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.