Home / 5,226.39-7,209.41-3,129.30

Finding the Fourth Proportional to 5,226.39, 7,209.41 and 3,129.30

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Solution

The fourth proportional to 5,226.39, 7,209.41 and 3,129.30 is: 4,316.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.39 : 7,209.41 = 3,129.30 : x
  2. Step 2: Convert to fraction form
    5,226.39/7,209.41 = 3,129.30/x
  3. Step 3: Cross multiply
    5,226.39x = 7,209.41 × 3,129.30
  4. Step 4: Simplify right side
    5,226.39x = 22,560,391.07
  5. Step 5: Solve for x
    x = 22,560,391.07/5,226.39
  6. Step 6: Final answer
    x = 4,316.63

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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.