Home / 1,941.12-2,912.14-554.48

Finding the Fourth Proportional to 1,941.12, 2,912.14 and 554.48

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Solution

The fourth proportional to 1,941.12, 2,912.14 and 554.48 is: 831.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.12 : 2,912.14 = 554.48 : x
  2. Step 2: Convert to fraction form
    1,941.12/2,912.14 = 554.48/x
  3. Step 3: Cross multiply
    1,941.12x = 2,912.14 × 554.48
  4. Step 4: Simplify right side
    1,941.12x = 1,614,706.05
  5. Step 5: Solve for x
    x = 1,614,706.05/1,941.12
  6. Step 6: Final answer
    x = 831.84

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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.