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Finding the Fourth Proportional to 7,323.62, 10,980.20 and 3,425.90

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Solution

The fourth proportional to 7,323.62, 10,980.20 and 3,425.90 is: 5,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,323.62 : 10,980.20 = 3,425.90 : x
  2. Step 2: Convert to fraction form
    7,323.62/10,980.20 = 3,425.90/x
  3. Step 3: Cross multiply
    7,323.62x = 10,980.20 × 3,425.90
  4. Step 4: Simplify right side
    7,323.62x = 37,617,067.18
  5. Step 5: Solve for x
    x = 37,617,067.18/7,323.62
  6. Step 6: Final answer
    x = 5,136.40

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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.