Home / 5,132.57-7,078.92-3,716.47

Finding the Fourth Proportional to 5,132.57, 7,078.92 and 3,716.47

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Solution

The fourth proportional to 5,132.57, 7,078.92 and 3,716.47 is: 5,125.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.57 : 7,078.92 = 3,716.47 : x
  2. Step 2: Convert to fraction form
    5,132.57/7,078.92 = 3,716.47/x
  3. Step 3: Cross multiply
    5,132.57x = 7,078.92 × 3,716.47
  4. Step 4: Simplify right side
    5,132.57x = 26,308,593.81
  5. Step 5: Solve for x
    x = 26,308,593.81/5,132.57
  6. Step 6: Final answer
    x = 5,125.81

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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.