Home / 5,170.15-7,755.18-1,274.59

Finding the Fourth Proportional to 5,170.15, 7,755.18 and 1,274.59

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Solution

The fourth proportional to 5,170.15, 7,755.18 and 1,274.59 is: 1,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.15 : 7,755.18 = 1,274.59 : x
  2. Step 2: Convert to fraction form
    5,170.15/7,755.18 = 1,274.59/x
  3. Step 3: Cross multiply
    5,170.15x = 7,755.18 × 1,274.59
  4. Step 4: Simplify right side
    5,170.15x = 9,884,674.88
  5. Step 5: Solve for x
    x = 9,884,674.88/5,170.15
  6. Step 6: Final answer
    x = 1,911.87

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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.