Home / 2,972.97-4,458.78-1,328.45

Finding the Fourth Proportional to 2,972.97, 4,458.78 and 1,328.45

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Solution

The fourth proportional to 2,972.97, 4,458.78 and 1,328.45 is: 1,992.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.97 : 4,458.78 = 1,328.45 : x
  2. Step 2: Convert to fraction form
    2,972.97/4,458.78 = 1,328.45/x
  3. Step 3: Cross multiply
    2,972.97x = 4,458.78 × 1,328.45
  4. Step 4: Simplify right side
    2,972.97x = 5,923,244.00
  5. Step 5: Solve for x
    x = 5,923,244.00/2,972.97
  6. Step 6: Final answer
    x = 1,992.37

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1.5x scale

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.