Home / 1,941.42-2,912.31-624.84

Finding the Fourth Proportional to 1,941.42, 2,912.31 and 624.84

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Solution

The fourth proportional to 1,941.42, 2,912.31 and 624.84 is: 937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.42 : 2,912.31 = 624.84 : x
  2. Step 2: Convert to fraction form
    1,941.42/2,912.31 = 624.84/x
  3. Step 3: Cross multiply
    1,941.42x = 2,912.31 × 624.84
  4. Step 4: Simplify right side
    1,941.42x = 1,819,727.78
  5. Step 5: Solve for x
    x = 1,819,727.78/1,941.42
  6. Step 6: Final answer
    x = 937.32

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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.