Home / 5,112.84-7,669.28-3,381.08

Finding the Fourth Proportional to 5,112.84, 7,669.28 and 3,381.08

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Solution

The fourth proportional to 5,112.84, 7,669.28 and 3,381.08 is: 5,071.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.84 : 7,669.28 = 3,381.08 : x
  2. Step 2: Convert to fraction form
    5,112.84/7,669.28 = 3,381.08/x
  3. Step 3: Cross multiply
    5,112.84x = 7,669.28 × 3,381.08
  4. Step 4: Simplify right side
    5,112.84x = 25,930,449.22
  5. Step 5: Solve for x
    x = 25,930,449.22/5,112.84
  6. Step 6: Final answer
    x = 5,071.63

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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.