Home / 5,269.91-7,272.20-2,911.59

Finding the Fourth Proportional to 5,269.91, 7,272.20 and 2,911.59

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Solution

The fourth proportional to 5,269.91, 7,272.20 and 2,911.59 is: 4,017.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.91 : 7,272.20 = 2,911.59 : x
  2. Step 2: Convert to fraction form
    5,269.91/7,272.20 = 2,911.59/x
  3. Step 3: Cross multiply
    5,269.91x = 7,272.20 × 2,911.59
  4. Step 4: Simplify right side
    5,269.91x = 21,173,650.24
  5. Step 5: Solve for x
    x = 21,173,650.24/5,269.91
  6. Step 6: Final answer
    x = 4,017.84

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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.