Home / 3,255.50-4,881.72-1,405.46

Finding the Fourth Proportional to 3,255.50, 4,881.72 and 1,405.46

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Solution

The fourth proportional to 3,255.50, 4,881.72 and 1,405.46 is: 2,107.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.50 : 4,881.72 = 1,405.46 : x
  2. Step 2: Convert to fraction form
    3,255.50/4,881.72 = 1,405.46/x
  3. Step 3: Cross multiply
    3,255.50x = 4,881.72 × 1,405.46
  4. Step 4: Simplify right side
    3,255.50x = 6,861,062.19
  5. Step 5: Solve for x
    x = 6,861,062.19/3,255.50
  6. Step 6: Final answer
    x = 2,107.53

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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.