Home / 3,218.20-4,441.40-1,958.95

Finding the Fourth Proportional to 3,218.20, 4,441.40 and 1,958.95

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Solution

The fourth proportional to 3,218.20, 4,441.40 and 1,958.95 is: 2,703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.20 : 4,441.40 = 1,958.95 : x
  2. Step 2: Convert to fraction form
    3,218.20/4,441.40 = 1,958.95/x
  3. Step 3: Cross multiply
    3,218.20x = 4,441.40 × 1,958.95
  4. Step 4: Simplify right side
    3,218.20x = 8,700,483.63
  5. Step 5: Solve for x
    x = 8,700,483.63/3,218.20
  6. Step 6: Final answer
    x = 2,703.53

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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.