Home / 7,723.19-10,657.97-4,186.40

Finding the Fourth Proportional to 7,723.19, 10,657.97 and 4,186.40

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Solution

The fourth proportional to 7,723.19, 10,657.97 and 4,186.40 is: 5,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.19 : 10,657.97 = 4,186.40 : x
  2. Step 2: Convert to fraction form
    7,723.19/10,657.97 = 4,186.40/x
  3. Step 3: Cross multiply
    7,723.19x = 10,657.97 × 4,186.40
  4. Step 4: Simplify right side
    7,723.19x = 44,618,451.39
  5. Step 5: Solve for x
    x = 44,618,451.39/7,723.19
  6. Step 6: Final answer
    x = 5,777.20

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Double scale
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Similar ratio
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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.