Home / 1,998.14-2,992.59-1,928.94

Finding the Fourth Proportional to 1,998.14, 2,992.59 and 1,928.94

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Solution

The fourth proportional to 1,998.14, 2,992.59 and 1,928.94 is: 2,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.14 : 2,992.59 = 1,928.94 : x
  2. Step 2: Convert to fraction form
    1,998.14/2,992.59 = 1,928.94/x
  3. Step 3: Cross multiply
    1,998.14x = 2,992.59 × 1,928.94
  4. Step 4: Simplify right side
    1,998.14x = 5,772,526.55
  5. Step 5: Solve for x
    x = 5,772,526.55/1,998.14
  6. Step 6: Final answer
    x = 2,888.95

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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.