Home / 3,621.52-4,997.72-1,965.52

Finding the Fourth Proportional to 3,621.52, 4,997.72 and 1,965.52

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Solution

The fourth proportional to 3,621.52, 4,997.72 and 1,965.52 is: 2,712.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.52 : 4,997.72 = 1,965.52 : x
  2. Step 2: Convert to fraction form
    3,621.52/4,997.72 = 1,965.52/x
  3. Step 3: Cross multiply
    3,621.52x = 4,997.72 × 1,965.52
  4. Step 4: Simplify right side
    3,621.52x = 9,823,118.61
  5. Step 5: Solve for x
    x = 9,823,118.61/3,621.52
  6. Step 6: Final answer
    x = 2,712.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.