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Finding the Fourth Proportional to 7,080.48, 10,620.80 and 3,077.44

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Solution

The fourth proportional to 7,080.48, 10,620.80 and 3,077.44 is: 4,616.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.48 : 10,620.80 = 3,077.44 : x
  2. Step 2: Convert to fraction form
    7,080.48/10,620.80 = 3,077.44/x
  3. Step 3: Cross multiply
    7,080.48x = 10,620.80 × 3,077.44
  4. Step 4: Simplify right side
    7,080.48x = 32,684,874.75
  5. Step 5: Solve for x
    x = 32,684,874.75/7,080.48
  6. Step 6: Final answer
    x = 4,616.19

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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.