Home / 4,937.12-7,388.28-3,086.72

Finding the Fourth Proportional to 4,937.12, 7,388.28 and 3,086.72

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Solution

The fourth proportional to 4,937.12, 7,388.28 and 3,086.72 is: 4,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,937.12 : 7,388.28 = 3,086.72 : x
  2. Step 2: Convert to fraction form
    4,937.12/7,388.28 = 3,086.72/x
  3. Step 3: Cross multiply
    4,937.12x = 7,388.28 × 3,086.72
  4. Step 4: Simplify right side
    4,937.12x = 22,805,551.64
  5. Step 5: Solve for x
    x = 22,805,551.64/4,937.12
  6. Step 6: Final answer
    x = 4,619.20

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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.