Home / 5,209.51-7,189.92-3,321.91

Finding the Fourth Proportional to 5,209.51, 7,189.92 and 3,321.91

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Solution

The fourth proportional to 5,209.51, 7,189.92 and 3,321.91 is: 4,584.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.51 : 7,189.92 = 3,321.91 : x
  2. Step 2: Convert to fraction form
    5,209.51/7,189.92 = 3,321.91/x
  3. Step 3: Cross multiply
    5,209.51x = 7,189.92 × 3,321.91
  4. Step 4: Simplify right side
    5,209.51x = 23,884,267.15
  5. Step 5: Solve for x
    x = 23,884,267.15/5,209.51
  6. Step 6: Final answer
    x = 4,584.74

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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.