Home / 3,468.60-4,786.80-1,976.58

Finding the Fourth Proportional to 3,468.60, 4,786.80 and 1,976.58

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Solution

The fourth proportional to 3,468.60, 4,786.80 and 1,976.58 is: 2,727.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.60 : 4,786.80 = 1,976.58 : x
  2. Step 2: Convert to fraction form
    3,468.60/4,786.80 = 1,976.58/x
  3. Step 3: Cross multiply
    3,468.60x = 4,786.80 × 1,976.58
  4. Step 4: Simplify right side
    3,468.60x = 9,461,493.14
  5. Step 5: Solve for x
    x = 9,461,493.14/3,468.60
  6. Step 6: Final answer
    x = 2,727.76

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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.