Home / 6,861.20-10,291.79-1,667.07

Finding the Fourth Proportional to 6,861.20, 10,291.79 and 1,667.07

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Solution

The fourth proportional to 6,861.20, 10,291.79 and 1,667.07 is: 2,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.20 : 10,291.79 = 1,667.07 : x
  2. Step 2: Convert to fraction form
    6,861.20/10,291.79 = 1,667.07/x
  3. Step 3: Cross multiply
    6,861.20x = 10,291.79 × 1,667.07
  4. Step 4: Simplify right side
    6,861.20x = 17,157,126.02
  5. Step 5: Solve for x
    x = 17,157,126.02/6,861.20
  6. Step 6: Final answer
    x = 2,500.60

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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.