Home / 4,920.58-7,380.56-1,998.81

Finding the Fourth Proportional to 4,920.58, 7,380.56 and 1,998.81

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Solution

The fourth proportional to 4,920.58, 7,380.56 and 1,998.81 is: 2,998.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.58 : 7,380.56 = 1,998.81 : x
  2. Step 2: Convert to fraction form
    4,920.58/7,380.56 = 1,998.81/x
  3. Step 3: Cross multiply
    4,920.58x = 7,380.56 × 1,998.81
  4. Step 4: Simplify right side
    4,920.58x = 14,752,342.13
  5. Step 5: Solve for x
    x = 14,752,342.13/4,920.58
  6. Step 6: Final answer
    x = 2,998.09

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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.