Home / 3,313.78-4,572.97-1,801.31

Finding the Fourth Proportional to 3,313.78, 4,572.97 and 1,801.31

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Solution

The fourth proportional to 3,313.78, 4,572.97 and 1,801.31 is: 2,485.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.78 : 4,572.97 = 1,801.31 : x
  2. Step 2: Convert to fraction form
    3,313.78/4,572.97 = 1,801.31/x
  3. Step 3: Cross multiply
    3,313.78x = 4,572.97 × 1,801.31
  4. Step 4: Simplify right side
    3,313.78x = 8,237,309.22
  5. Step 5: Solve for x
    x = 8,237,309.22/3,313.78
  6. Step 6: Final answer
    x = 2,485.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.