Home / 5,209.08-7,186.68-3,220.08

Finding the Fourth Proportional to 5,209.08, 7,186.68 and 3,220.08

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Solution

The fourth proportional to 5,209.08, 7,186.68 and 3,220.08 is: 4,442.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.08 : 7,186.68 = 3,220.08 : x
  2. Step 2: Convert to fraction form
    5,209.08/7,186.68 = 3,220.08/x
  3. Step 3: Cross multiply
    5,209.08x = 7,186.68 × 3,220.08
  4. Step 4: Simplify right side
    5,209.08x = 23,141,684.53
  5. Step 5: Solve for x
    x = 23,141,684.53/5,209.08
  6. Step 6: Final answer
    x = 4,442.57

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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.