Home / 5,892.75-8,132.45-4,128.57

Finding the Fourth Proportional to 5,892.75, 8,132.45 and 4,128.57

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Solution

The fourth proportional to 5,892.75, 8,132.45 and 4,128.57 is: 5,697.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,892.75 : 8,132.45 = 4,128.57 : x
  2. Step 2: Convert to fraction form
    5,892.75/8,132.45 = 4,128.57/x
  3. Step 3: Cross multiply
    5,892.75x = 8,132.45 × 4,128.57
  4. Step 4: Simplify right side
    5,892.75x = 33,575,391.68
  5. Step 5: Solve for x
    x = 33,575,391.68/5,892.75
  6. Step 6: Final answer
    x = 5,697.75

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.