Home / 5,246.91-7,240.69-2,889

Finding the Fourth Proportional to 5,246.91, 7,240.69 and 2,889

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Solution

The fourth proportional to 5,246.91, 7,240.69 and 2,889 is: 3,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.91 : 7,240.69 = 2,889 : x
  2. Step 2: Convert to fraction form
    5,246.91/7,240.69 = 2,889/x
  3. Step 3: Cross multiply
    5,246.91x = 7,240.69 × 2,889
  4. Step 4: Simplify right side
    5,246.91x = 20,918,357.02
  5. Step 5: Solve for x
    x = 20,918,357.02/5,246.91
  6. Step 6: Final answer
    x = 3,986.80

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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.