Home / 6,879.28-10,318.97-1,685.16

Finding the Fourth Proportional to 6,879.28, 10,318.97 and 1,685.16

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Solution

The fourth proportional to 6,879.28, 10,318.97 and 1,685.16 is: 2,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.28 : 10,318.97 = 1,685.16 : x
  2. Step 2: Convert to fraction form
    6,879.28/10,318.97 = 1,685.16/x
  3. Step 3: Cross multiply
    6,879.28x = 10,318.97 × 1,685.16
  4. Step 4: Simplify right side
    6,879.28x = 17,389,115.49
  5. Step 5: Solve for x
    x = 17,389,115.49/6,879.28
  6. Step 6: Final answer
    x = 2,527.75

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