Home / 4,974.80-7,455.72-2,512.40

Finding the Fourth Proportional to 4,974.80, 7,455.72 and 2,512.40

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Solution

The fourth proportional to 4,974.80, 7,455.72 and 2,512.40 is: 3,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974.80 : 7,455.72 = 2,512.40 : x
  2. Step 2: Convert to fraction form
    4,974.80/7,455.72 = 2,512.40/x
  3. Step 3: Cross multiply
    4,974.80x = 7,455.72 × 2,512.40
  4. Step 4: Simplify right side
    4,974.80x = 18,731,750.93
  5. Step 5: Solve for x
    x = 18,731,750.93/4,974.80
  6. Step 6: Final answer
    x = 3,765.33

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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.