Home / 1,941.45-2,912.63-554.81

Finding the Fourth Proportional to 1,941.45, 2,912.63 and 554.81

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Solution

The fourth proportional to 1,941.45, 2,912.63 and 554.81 is: 832.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.45 : 2,912.63 = 554.81 : x
  2. Step 2: Convert to fraction form
    1,941.45/2,912.63 = 554.81/x
  3. Step 3: Cross multiply
    1,941.45x = 2,912.63 × 554.81
  4. Step 4: Simplify right side
    1,941.45x = 1,615,941.69
  5. Step 5: Solve for x
    x = 1,615,941.69/1,941.45
  6. Step 6: Final answer
    x = 832.34

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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.