Home / 1,958.42-2,936.82-1,125.74

Finding the Fourth Proportional to 1,958.42, 2,936.82 and 1,125.74

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Solution

The fourth proportional to 1,958.42, 2,936.82 and 1,125.74 is: 1,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.42 : 2,936.82 = 1,125.74 : x
  2. Step 2: Convert to fraction form
    1,958.42/2,936.82 = 1,125.74/x
  3. Step 3: Cross multiply
    1,958.42x = 2,936.82 × 1,125.74
  4. Step 4: Simplify right side
    1,958.42x = 3,306,095.75
  5. Step 5: Solve for x
    x = 3,306,095.75/1,958.42
  6. Step 6: Final answer
    x = 1,688.14

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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.