Home / 6,861.26-10,291.89-1,930.90

Finding the Fourth Proportional to 6,861.26, 10,291.89 and 1,930.90

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Solution

The fourth proportional to 6,861.26, 10,291.89 and 1,930.90 is: 2,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.26 : 10,291.89 = 1,930.90 : x
  2. Step 2: Convert to fraction form
    6,861.26/10,291.89 = 1,930.90/x
  3. Step 3: Cross multiply
    6,861.26x = 10,291.89 × 1,930.90
  4. Step 4: Simplify right side
    6,861.26x = 19,872,610.40
  5. Step 5: Solve for x
    x = 19,872,610.40/6,861.26
  6. Step 6: Final answer
    x = 2,896.35

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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.