Home / 5,221.23-7,205.40-2,863.23

Finding the Fourth Proportional to 5,221.23, 7,205.40 and 2,863.23

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Solution

The fourth proportional to 5,221.23, 7,205.40 and 2,863.23 is: 3,951.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.23 : 7,205.40 = 2,863.23 : x
  2. Step 2: Convert to fraction form
    5,221.23/7,205.40 = 2,863.23/x
  3. Step 3: Cross multiply
    5,221.23x = 7,205.40 × 2,863.23
  4. Step 4: Simplify right side
    5,221.23x = 20,630,717.44
  5. Step 5: Solve for x
    x = 20,630,717.44/5,221.23
  6. Step 6: Final answer
    x = 3,951.31

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1.5x scale

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.