Home / 5,469-7,547.49-3,111.36

Finding the Fourth Proportional to 5,469, 7,547.49 and 3,111.36

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Solution

The fourth proportional to 5,469, 7,547.49 and 3,111.36 is: 4,293.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,469 : 7,547.49 = 3,111.36 : x
  2. Step 2: Convert to fraction form
    5,469/7,547.49 = 3,111.36/x
  3. Step 3: Cross multiply
    5,469x = 7,547.49 × 3,111.36
  4. Step 4: Simplify right side
    5,469x = 23,482,958.49
  5. Step 5: Solve for x
    x = 23,482,958.49/5,469
  6. Step 6: Final answer
    x = 4,293.83

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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.