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Finding the Fourth Proportional to 5,740.80, 8,611.80 and 1,844.28

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Solution

The fourth proportional to 5,740.80, 8,611.80 and 1,844.28 is: 2,766.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,740.80 : 8,611.80 = 1,844.28 : x
  2. Step 2: Convert to fraction form
    5,740.80/8,611.80 = 1,844.28/x
  3. Step 3: Cross multiply
    5,740.80x = 8,611.80 × 1,844.28
  4. Step 4: Simplify right side
    5,740.80x = 15,882,570.50
  5. Step 5: Solve for x
    x = 15,882,570.50/5,740.80
  6. Step 6: Final answer
    x = 2,766.61

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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.