Home / 5,170.43-7,135.16-2,812.59

Finding the Fourth Proportional to 5,170.43, 7,135.16 and 2,812.59

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Solution

The fourth proportional to 5,170.43, 7,135.16 and 2,812.59 is: 3,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.43 : 7,135.16 = 2,812.59 : x
  2. Step 2: Convert to fraction form
    5,170.43/7,135.16 = 2,812.59/x
  3. Step 3: Cross multiply
    5,170.43x = 7,135.16 × 2,812.59
  4. Step 4: Simplify right side
    5,170.43x = 20,068,265.60
  5. Step 5: Solve for x
    x = 20,068,265.60/5,170.43
  6. Step 6: Final answer
    x = 3,881.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.