Home / 5,287.28-7,293.92-3,161.57

Finding the Fourth Proportional to 5,287.28, 7,293.92 and 3,161.57

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Solution

The fourth proportional to 5,287.28, 7,293.92 and 3,161.57 is: 4,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.28 : 7,293.92 = 3,161.57 : x
  2. Step 2: Convert to fraction form
    5,287.28/7,293.92 = 3,161.57/x
  3. Step 3: Cross multiply
    5,287.28x = 7,293.92 × 3,161.57
  4. Step 4: Simplify right side
    5,287.28x = 23,060,186.38
  5. Step 5: Solve for x
    x = 23,060,186.38/5,287.28
  6. Step 6: Final answer
    x = 4,361.45

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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.