Home / 5,243.28-7,186.90-5,170.38

Finding the Fourth Proportional to 5,243.28, 7,186.90 and 5,170.38

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Solution

The fourth proportional to 5,243.28, 7,186.90 and 5,170.38 is: 7,086.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.28 : 7,186.90 = 5,170.38 : x
  2. Step 2: Convert to fraction form
    5,243.28/7,186.90 = 5,170.38/x
  3. Step 3: Cross multiply
    5,243.28x = 7,186.90 × 5,170.38
  4. Step 4: Simplify right side
    5,243.28x = 37,159,004.02
  5. Step 5: Solve for x
    x = 37,159,004.02/5,243.28
  6. Step 6: Final answer
    x = 7,086.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.