Home / 5,190.22-7,785.18-1,294.54

Finding the Fourth Proportional to 5,190.22, 7,785.18 and 1,294.54

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Solution

The fourth proportional to 5,190.22, 7,785.18 and 1,294.54 is: 1,941.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.22 : 7,785.18 = 1,294.54 : x
  2. Step 2: Convert to fraction form
    5,190.22/7,785.18 = 1,294.54/x
  3. Step 3: Cross multiply
    5,190.22x = 7,785.18 × 1,294.54
  4. Step 4: Simplify right side
    5,190.22x = 10,078,226.92
  5. Step 5: Solve for x
    x = 10,078,226.92/5,190.22
  6. Step 6: Final answer
    x = 1,941.77

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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.