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Finding the Fourth Proportional to 7,850.13, 11,773.90 and 2,585.22

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Solution

The fourth proportional to 7,850.13, 11,773.90 and 2,585.22 is: 3,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.13 : 11,773.90 = 2,585.22 : x
  2. Step 2: Convert to fraction form
    7,850.13/11,773.90 = 2,585.22/x
  3. Step 3: Cross multiply
    7,850.13x = 11,773.90 × 2,585.22
  4. Step 4: Simplify right side
    7,850.13x = 30,438,121.76
  5. Step 5: Solve for x
    x = 30,438,121.76/7,850.13
  6. Step 6: Final answer
    x = 3,877.40

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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.