Home / 5,452.26-8,179.60-1,989.50

Finding the Fourth Proportional to 5,452.26, 8,179.60 and 1,989.50

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Solution

The fourth proportional to 5,452.26, 8,179.60 and 1,989.50 is: 2,984.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,452.26 : 8,179.60 = 1,989.50 : x
  2. Step 2: Convert to fraction form
    5,452.26/8,179.60 = 1,989.50/x
  3. Step 3: Cross multiply
    5,452.26x = 8,179.60 × 1,989.50
  4. Step 4: Simplify right side
    5,452.26x = 16,273,314.20
  5. Step 5: Solve for x
    x = 16,273,314.20/5,452.26
  6. Step 6: Final answer
    x = 2,984.69

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Half scale
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Double scale
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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.