Home / 4,921.52-7,378.38-2,455.06

Finding the Fourth Proportional to 4,921.52, 7,378.38 and 2,455.06

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Solution

The fourth proportional to 4,921.52, 7,378.38 and 2,455.06 is: 3,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.52 : 7,378.38 = 2,455.06 : x
  2. Step 2: Convert to fraction form
    4,921.52/7,378.38 = 2,455.06/x
  3. Step 3: Cross multiply
    4,921.52x = 7,378.38 × 2,455.06
  4. Step 4: Simplify right side
    4,921.52x = 18,114,365.60
  5. Step 5: Solve for x
    x = 18,114,365.60/4,921.52
  6. Step 6: Final answer
    x = 3,680.64

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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.