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Finding the Fourth Proportional to 6,080.86, 9,120.48 and 1,921.24

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Solution

The fourth proportional to 6,080.86, 9,120.48 and 1,921.24 is: 2,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,080.86 : 9,120.48 = 1,921.24 : x
  2. Step 2: Convert to fraction form
    6,080.86/9,120.48 = 1,921.24/x
  3. Step 3: Cross multiply
    6,080.86x = 9,120.48 × 1,921.24
  4. Step 4: Simplify right side
    6,080.86x = 17,522,631.00
  5. Step 5: Solve for x
    x = 17,522,631.00/6,080.86
  6. Step 6: Final answer
    x = 2,881.60

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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.