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Finding the Fourth Proportional to 5,488.62, 8,232.96 and 1,328.62

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Solution

The fourth proportional to 5,488.62, 8,232.96 and 1,328.62 is: 1,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.62 : 8,232.96 = 1,328.62 : x
  2. Step 2: Convert to fraction form
    5,488.62/8,232.96 = 1,328.62/x
  3. Step 3: Cross multiply
    5,488.62x = 8,232.96 × 1,328.62
  4. Step 4: Simplify right side
    5,488.62x = 10,938,505.40
  5. Step 5: Solve for x
    x = 10,938,505.40/5,488.62
  6. Step 6: Final answer
    x = 1,992.94

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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.