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Finding the Fourth Proportional to 6,452.80, 9,679.20 and 2,070.70

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Solution

The fourth proportional to 6,452.80, 9,679.20 and 2,070.70 is: 3,106.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,452.80 : 9,679.20 = 2,070.70 : x
  2. Step 2: Convert to fraction form
    6,452.80/9,679.20 = 2,070.70/x
  3. Step 3: Cross multiply
    6,452.80x = 9,679.20 × 2,070.70
  4. Step 4: Simplify right side
    6,452.80x = 20,042,719.44
  5. Step 5: Solve for x
    x = 20,042,719.44/6,452.80
  6. Step 6: Final answer
    x = 3,106.05

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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.