Home / 5,186.76-7,158.34-3,196.92

Finding the Fourth Proportional to 5,186.76, 7,158.34 and 3,196.92

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Solution

The fourth proportional to 5,186.76, 7,158.34 and 3,196.92 is: 4,412.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.76 : 7,158.34 = 3,196.92 : x
  2. Step 2: Convert to fraction form
    5,186.76/7,158.34 = 3,196.92/x
  3. Step 3: Cross multiply
    5,186.76x = 7,158.34 × 3,196.92
  4. Step 4: Simplify right side
    5,186.76x = 22,884,640.31
  5. Step 5: Solve for x
    x = 22,884,640.31/5,186.76
  6. Step 6: Final answer
    x = 4,412.13

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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.