Home / 5,140.06-7,713.18-2,218.37

Finding the Fourth Proportional to 5,140.06, 7,713.18 and 2,218.37

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Solution

The fourth proportional to 5,140.06, 7,713.18 and 2,218.37 is: 3,328.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.06 : 7,713.18 = 2,218.37 : x
  2. Step 2: Convert to fraction form
    5,140.06/7,713.18 = 2,218.37/x
  3. Step 3: Cross multiply
    5,140.06x = 7,713.18 × 2,218.37
  4. Step 4: Simplify right side
    5,140.06x = 17,110,648.55
  5. Step 5: Solve for x
    x = 17,110,648.55/5,140.06
  6. Step 6: Final answer
    x = 3,328.88

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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.