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Finding the Fourth Proportional to 6,531.60, 9,800.64 and 3,069.12

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Solution

The fourth proportional to 6,531.60, 9,800.64 and 3,069.12 is: 4,605.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.60 : 9,800.64 = 3,069.12 : x
  2. Step 2: Convert to fraction form
    6,531.60/9,800.64 = 3,069.12/x
  3. Step 3: Cross multiply
    6,531.60x = 9,800.64 × 3,069.12
  4. Step 4: Simplify right side
    6,531.60x = 30,079,340.24
  5. Step 5: Solve for x
    x = 30,079,340.24/6,531.60
  6. Step 6: Final answer
    x = 4,605.20

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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.