Home / 3,178.64-4,383.92-2,237.55

Finding the Fourth Proportional to 3,178.64, 4,383.92 and 2,237.55

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Solution

The fourth proportional to 3,178.64, 4,383.92 and 2,237.55 is: 3,085.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.64 : 4,383.92 = 2,237.55 : x
  2. Step 2: Convert to fraction form
    3,178.64/4,383.92 = 2,237.55/x
  3. Step 3: Cross multiply
    3,178.64x = 4,383.92 × 2,237.55
  4. Step 4: Simplify right side
    3,178.64x = 9,809,240.20
  5. Step 5: Solve for x
    x = 9,809,240.20/3,178.64
  6. Step 6: Final answer
    x = 3,085.99

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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.