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Finding the Fourth Proportional to 7,681.62, 11,522.91 and 3,064.50

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Solution

The fourth proportional to 7,681.62, 11,522.91 and 3,064.50 is: 4,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.62 : 11,522.91 = 3,064.50 : x
  2. Step 2: Convert to fraction form
    7,681.62/11,522.91 = 3,064.50/x
  3. Step 3: Cross multiply
    7,681.62x = 11,522.91 × 3,064.50
  4. Step 4: Simplify right side
    7,681.62x = 35,311,957.70
  5. Step 5: Solve for x
    x = 35,311,957.70/7,681.62
  6. Step 6: Final answer
    x = 4,596.94

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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.