Home / 6,080.32-9,120.84-1,638.64

Finding the Fourth Proportional to 6,080.32, 9,120.84 and 1,638.64

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Solution

The fourth proportional to 6,080.32, 9,120.84 and 1,638.64 is: 2,458.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,080.32 : 9,120.84 = 1,638.64 : x
  2. Step 2: Convert to fraction form
    6,080.32/9,120.84 = 1,638.64/x
  3. Step 3: Cross multiply
    6,080.32x = 9,120.84 × 1,638.64
  4. Step 4: Simplify right side
    6,080.32x = 14,945,773.26
  5. Step 5: Solve for x
    x = 14,945,773.26/6,080.32
  6. Step 6: Final answer
    x = 2,458.06

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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.