Home / 3,468.84-5,190.60-2,987.64

Finding the Fourth Proportional to 3,468.84, 5,190.60 and 2,987.64

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Solution

The fourth proportional to 3,468.84, 5,190.60 and 2,987.64 is: 4,470.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.84 : 5,190.60 = 2,987.64 : x
  2. Step 2: Convert to fraction form
    3,468.84/5,190.60 = 2,987.64/x
  3. Step 3: Cross multiply
    3,468.84x = 5,190.60 × 2,987.64
  4. Step 4: Simplify right side
    3,468.84x = 15,507,644.18
  5. Step 5: Solve for x
    x = 15,507,644.18/3,468.84
  6. Step 6: Final answer
    x = 4,470.56

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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.