Home / 3,610.56-4,979.84-2,619.12

Finding the Fourth Proportional to 3,610.56, 4,979.84 and 2,619.12

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Solution

The fourth proportional to 3,610.56, 4,979.84 and 2,619.12 is: 3,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.56 : 4,979.84 = 2,619.12 : x
  2. Step 2: Convert to fraction form
    3,610.56/4,979.84 = 2,619.12/x
  3. Step 3: Cross multiply
    3,610.56x = 4,979.84 × 2,619.12
  4. Step 4: Simplify right side
    3,610.56x = 13,042,785.45
  5. Step 5: Solve for x
    x = 13,042,785.45/3,610.56
  6. Step 6: Final answer
    x = 3,612.40

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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.