Home / 5,287.34-7,286.46-3,871.46

Finding the Fourth Proportional to 5,287.34, 7,286.46 and 3,871.46

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Solution

The fourth proportional to 5,287.34, 7,286.46 and 3,871.46 is: 5,335.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.34 : 7,286.46 = 3,871.46 : x
  2. Step 2: Convert to fraction form
    5,287.34/7,286.46 = 3,871.46/x
  3. Step 3: Cross multiply
    5,287.34x = 7,286.46 × 3,871.46
  4. Step 4: Simplify right side
    5,287.34x = 28,209,202.00
  5. Step 5: Solve for x
    x = 28,209,202.00/5,287.34
  6. Step 6: Final answer
    x = 5,335.24

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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.