Home / 7,680.34-11,520.65-3,297.84

Finding the Fourth Proportional to 7,680.34, 11,520.65 and 3,297.84

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Solution

The fourth proportional to 7,680.34, 11,520.65 and 3,297.84 is: 4,946.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.34 : 11,520.65 = 3,297.84 : x
  2. Step 2: Convert to fraction form
    7,680.34/11,520.65 = 3,297.84/x
  3. Step 3: Cross multiply
    7,680.34x = 11,520.65 × 3,297.84
  4. Step 4: Simplify right side
    7,680.34x = 37,993,260.40
  5. Step 5: Solve for x
    x = 37,993,260.40/7,680.34
  6. Step 6: Final answer
    x = 4,946.82

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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.