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Finding the Fourth Proportional to 6,080.52, 9,120.32 and 1,920.68

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Solution

The fourth proportional to 6,080.52, 9,120.32 and 1,920.68 is: 2,880.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,080.52 : 9,120.32 = 1,920.68 : x
  2. Step 2: Convert to fraction form
    6,080.52/9,120.32 = 1,920.68/x
  3. Step 3: Cross multiply
    6,080.52x = 9,120.32 × 1,920.68
  4. Step 4: Simplify right side
    6,080.52x = 17,517,216.22
  5. Step 5: Solve for x
    x = 17,517,216.22/6,080.52
  6. Step 6: Final answer
    x = 2,880.87

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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.