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Finding the Fourth Proportional to 6,080.61, 9,121.80 and 1,920.18

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Solution

The fourth proportional to 6,080.61, 9,121.80 and 1,920.18 is: 2,880.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,080.61 : 9,121.80 = 1,920.18 : x
  2. Step 2: Convert to fraction form
    6,080.61/9,121.80 = 1,920.18/x
  3. Step 3: Cross multiply
    6,080.61x = 9,121.80 × 1,920.18
  4. Step 4: Simplify right side
    6,080.61x = 17,515,497.92
  5. Step 5: Solve for x
    x = 17,515,497.92/6,080.61
  6. Step 6: Final answer
    x = 2,880.55

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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.