Home / 5,209.07-7,189.76-2,972.25

Finding the Fourth Proportional to 5,209.07, 7,189.76 and 2,972.25

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Solution

The fourth proportional to 5,209.07, 7,189.76 and 2,972.25 is: 4,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.07 : 7,189.76 = 2,972.25 : x
  2. Step 2: Convert to fraction form
    5,209.07/7,189.76 = 2,972.25/x
  3. Step 3: Cross multiply
    5,209.07x = 7,189.76 × 2,972.25
  4. Step 4: Simplify right side
    5,209.07x = 21,369,771.59
  5. Step 5: Solve for x
    x = 21,369,771.59/5,209.07
  6. Step 6: Final answer
    x = 4,102.42

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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.