Home / 7,089.79-10,636.97-2,160.38

Finding the Fourth Proportional to 7,089.79, 10,636.97 and 2,160.38

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Solution

The fourth proportional to 7,089.79, 10,636.97 and 2,160.38 is: 3,241.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.79 : 10,636.97 = 2,160.38 : x
  2. Step 2: Convert to fraction form
    7,089.79/10,636.97 = 2,160.38/x
  3. Step 3: Cross multiply
    7,089.79x = 10,636.97 × 2,160.38
  4. Step 4: Simplify right side
    7,089.79x = 22,979,897.25
  5. Step 5: Solve for x
    x = 22,979,897.25/7,089.79
  6. Step 6: Final answer
    x = 3,241.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.