Home / 4,921.98-7,378.83-2,146.54

Finding the Fourth Proportional to 4,921.98, 7,378.83 and 2,146.54

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Solution

The fourth proportional to 4,921.98, 7,378.83 and 2,146.54 is: 3,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.98 : 7,378.83 = 2,146.54 : x
  2. Step 2: Convert to fraction form
    4,921.98/7,378.83 = 2,146.54/x
  3. Step 3: Cross multiply
    4,921.98x = 7,378.83 × 2,146.54
  4. Step 4: Simplify right side
    4,921.98x = 15,838,953.75
  5. Step 5: Solve for x
    x = 15,838,953.75/4,921.98
  6. Step 6: Final answer
    x = 3,218.00

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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.