Home / 5,137.96-7,708.29-2,215.57

Finding the Fourth Proportional to 5,137.96, 7,708.29 and 2,215.57

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Solution

The fourth proportional to 5,137.96, 7,708.29 and 2,215.57 is: 3,323.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.96 : 7,708.29 = 2,215.57 : x
  2. Step 2: Convert to fraction form
    5,137.96/7,708.29 = 2,215.57/x
  3. Step 3: Cross multiply
    5,137.96x = 7,708.29 × 2,215.57
  4. Step 4: Simplify right side
    5,137.96x = 17,078,256.08
  5. Step 5: Solve for x
    x = 17,078,256.08/5,137.96
  6. Step 6: Final answer
    x = 3,323.94

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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.