Home / 3,364.80-4,642.68-2,185.44

Finding the Fourth Proportional to 3,364.80, 4,642.68 and 2,185.44

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Solution

The fourth proportional to 3,364.80, 4,642.68 and 2,185.44 is: 3,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.80 : 4,642.68 = 2,185.44 : x
  2. Step 2: Convert to fraction form
    3,364.80/4,642.68 = 2,185.44/x
  3. Step 3: Cross multiply
    3,364.80x = 4,642.68 × 2,185.44
  4. Step 4: Simplify right side
    3,364.80x = 10,146,298.58
  5. Step 5: Solve for x
    x = 10,146,298.58/3,364.80
  6. Step 6: Final answer
    x = 3,015.42

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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.