Home / 4,921.12-7,380.16-1,633.56

Finding the Fourth Proportional to 4,921.12, 7,380.16 and 1,633.56

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Solution

The fourth proportional to 4,921.12, 7,380.16 and 1,633.56 is: 2,449.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.12 : 7,380.16 = 1,633.56 : x
  2. Step 2: Convert to fraction form
    4,921.12/7,380.16 = 1,633.56/x
  3. Step 3: Cross multiply
    4,921.12x = 7,380.16 × 1,633.56
  4. Step 4: Simplify right side
    4,921.12x = 12,055,934.17
  5. Step 5: Solve for x
    x = 12,055,934.17/4,921.12
  6. Step 6: Final answer
    x = 2,449.84

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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.