Home / 3,278.08-4,909.56-1,976.68

Finding the Fourth Proportional to 3,278.08, 4,909.56 and 1,976.68

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Solution

The fourth proportional to 3,278.08, 4,909.56 and 1,976.68 is: 2,960.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.08 : 4,909.56 = 1,976.68 : x
  2. Step 2: Convert to fraction form
    3,278.08/4,909.56 = 1,976.68/x
  3. Step 3: Cross multiply
    3,278.08x = 4,909.56 × 1,976.68
  4. Step 4: Simplify right side
    3,278.08x = 9,704,629.06
  5. Step 5: Solve for x
    x = 9,704,629.06/3,278.08
  6. Step 6: Final answer
    x = 2,960.46

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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.