Home / 3,079.32-4,620.32-1,618.12

Finding the Fourth Proportional to 3,079.32, 4,620.32 and 1,618.12

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Solution

The fourth proportional to 3,079.32, 4,620.32 and 1,618.12 is: 2,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.32 : 4,620.32 = 1,618.12 : x
  2. Step 2: Convert to fraction form
    3,079.32/4,620.32 = 1,618.12/x
  3. Step 3: Cross multiply
    3,079.32x = 4,620.32 × 1,618.12
  4. Step 4: Simplify right side
    3,079.32x = 7,476,232.20
  5. Step 5: Solve for x
    x = 7,476,232.20/3,079.32
  6. Step 6: Final answer
    x = 2,427.88

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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.