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Finding the Fourth Proportional to 5,080.22, 7,620.78 and 1,617.47

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Solution

The fourth proportional to 5,080.22, 7,620.78 and 1,617.47 is: 2,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.22 : 7,620.78 = 1,617.47 : x
  2. Step 2: Convert to fraction form
    5,080.22/7,620.78 = 1,617.47/x
  3. Step 3: Cross multiply
    5,080.22x = 7,620.78 × 1,617.47
  4. Step 4: Simplify right side
    5,080.22x = 12,326,379.57
  5. Step 5: Solve for x
    x = 12,326,379.57/5,080.22
  6. Step 6: Final answer
    x = 2,426.35

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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.