Home / 3,261.52-4,890.81-1,945.88

Finding the Fourth Proportional to 3,261.52, 4,890.81 and 1,945.88

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Solution

The fourth proportional to 3,261.52, 4,890.81 and 1,945.88 is: 2,917.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.52 : 4,890.81 = 1,945.88 : x
  2. Step 2: Convert to fraction form
    3,261.52/4,890.81 = 1,945.88/x
  3. Step 3: Cross multiply
    3,261.52x = 4,890.81 × 1,945.88
  4. Step 4: Simplify right side
    3,261.52x = 9,516,929.36
  5. Step 5: Solve for x
    x = 9,516,929.36/3,261.52
  6. Step 6: Final answer
    x = 2,917.94

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1.5x scale

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.