Home / 5,157.60-7,733.76-1,694.40

Finding the Fourth Proportional to 5,157.60, 7,733.76 and 1,694.40

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Solution

The fourth proportional to 5,157.60, 7,733.76 and 1,694.40 is: 2,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.60 : 7,733.76 = 1,694.40 : x
  2. Step 2: Convert to fraction form
    5,157.60/7,733.76 = 1,694.40/x
  3. Step 3: Cross multiply
    5,157.60x = 7,733.76 × 1,694.40
  4. Step 4: Simplify right side
    5,157.60x = 13,104,082.94
  5. Step 5: Solve for x
    x = 13,104,082.94/5,157.60
  6. Step 6: Final answer
    x = 2,540.73

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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.