Home / 3,468.40-4,786.81-1,976.63

Finding the Fourth Proportional to 3,468.40, 4,786.81 and 1,976.63

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Solution

The fourth proportional to 3,468.40, 4,786.81 and 1,976.63 is: 2,727.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.40 : 4,786.81 = 1,976.63 : x
  2. Step 2: Convert to fraction form
    3,468.40/4,786.81 = 1,976.63/x
  3. Step 3: Cross multiply
    3,468.40x = 4,786.81 × 1,976.63
  4. Step 4: Simplify right side
    3,468.40x = 9,461,723.37
  5. Step 5: Solve for x
    x = 9,461,723.37/3,468.40
  6. Step 6: Final answer
    x = 2,727.98

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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.