Home / 5,246.88-7,240.70-2,889.02

Finding the Fourth Proportional to 5,246.88, 7,240.70 and 2,889.02

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Solution

The fourth proportional to 5,246.88, 7,240.70 and 2,889.02 is: 3,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.88 : 7,240.70 = 2,889.02 : x
  2. Step 2: Convert to fraction form
    5,246.88/7,240.70 = 2,889.02/x
  3. Step 3: Cross multiply
    5,246.88x = 7,240.70 × 2,889.02
  4. Step 4: Simplify right side
    5,246.88x = 20,918,530.77
  5. Step 5: Solve for x
    x = 20,918,530.77/5,246.88
  6. Step 6: Final answer
    x = 3,986.85

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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.