Home / 5,133.16-7,081.38-3,243.88

Finding the Fourth Proportional to 5,133.16, 7,081.38 and 3,243.88

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Solution

The fourth proportional to 5,133.16, 7,081.38 and 3,243.88 is: 4,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.16 : 7,081.38 = 3,243.88 : x
  2. Step 2: Convert to fraction form
    5,133.16/7,081.38 = 3,243.88/x
  3. Step 3: Cross multiply
    5,133.16x = 7,081.38 × 3,243.88
  4. Step 4: Simplify right side
    5,133.16x = 22,971,146.95
  5. Step 5: Solve for x
    x = 22,971,146.95/5,133.16
  6. Step 6: Final answer
    x = 4,475.05

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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.